@article{Abadi:2015:TensorFlowLargescaleMachine, title = {{{TensorFlow}}: {{Large}}-Scale Machine Learning on Heterogeneous Systems}, author = {Abadi, Martín and Agarwal, Ashish and Barham, Paul and Brevdo, Eugene and Chen, Zhifeng and Citro, Craig and Corrado, Greg S. and Davis, Andy and Dean, Jeffrey and Devin, Matthieu and Ghemawat, Sanjay and Goodfellow, Ian and Harp, Andrew and Irving, Geoffrey and Isard, Michael and Jia, Yangqing and Jozefowicz, Rafal and Kaiser, Lukasz and Kudlur, Manjunath and Levenberg, Josh and Mané, Dandelion and Monga, Rajat and Moore, Sherry and Murray, Derek and Olah, Chris and Schuster, Mike and Shlens, Jonathon and Steiner, Benoit and Sutskever, Ilya and Talwar, Kunal and Tucker, Paul and Vanhoucke, Vincent and Vasudevan, Vijay and Viégas, Fernanda and Vinyals, Oriol and Warden, Pete and Wattenberg, Martin and Wicke, Martin and Yu, Yuan and Zheng, Xiaoqiang}, date = {2015}, url = {https://www.tensorflow.org/}, file = {/home/riccardo/.local/share/zotero/files/abadi_et_al_2015_tensorflow.pdf} } @article{Abel:2003:FlavourChangingNeutral, title = {Flavour {{Changing Neutral Currents}} in {{Intersecting Brane Models}}}, author = {Abel, Steven A. and Masip, Manuel and Santiago, Jose}, date = {2003}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2003}, pages = {057--057}, issn = {1029-8479}, doi = {10/b39bd8}, abstract = {Intersecting D-brane models provide an attractive explanation of family replication in the context of string theory. We show, however, that the localization of fermion families at different brane intersections in the extra dimensions introduces flavour changing neutral currents mediated by the Kaluza-Klein excitations of the gauge fields. This is a generic feature in these models, and it implies stringent bounds on the mass of the lightest Kaluza-Klein modes (becoming severe when the compactification radii are larger than the string length). We present the full string calculation of four-fermion interactions in models with intersecting D-branes, recovering the field theory result. This reveals other stringy sources of flavour violation, which give bounds that are complementary to the KK bounds (i.e. they become severe when the compactification radii are comparable to the string length). Taken together these bounds imply that the string scale is larger than \$M\_s\textbackslash gtrsim 10\^2\$ TeV, implying that non-supersymmetric cases are phenomenologically disfavoured.}, archivePrefix = {arXiv}, eprint = {hep-ph/0303087}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/abel_et_al_2003_flavour_changing_neutral_currents_in_intersecting_brane_models.pdf}, number = {04} } @article{Abel:2005:OneloopYukawasIntersecting, title = {One-Loop {{Yukawas}} on {{Intersecting Branes}}}, author = {Abel, Steven A. and Schofield, Ben W.}, date = {2005}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2005}, pages = {072--072}, issn = {1029-8479}, doi = {10/bt34kd}, abstract = {We calculate Yukawa interactions at one-loop on intersecting D6 branes. We demonstrate the non-renormalization theorem in supersymmetric configurations, and show how Yukawa beta functions may be extracted. In addition to the usual logarithmic running, we find the power-law dependence on the infra-red cut-off associated with Kaluza-Klein modes. Our results may also be used to evaluate coupling renormalization in non-supersymmetric cases.}, archivePrefix = {arXiv}, eprint = {hep-th/0412206}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/abel_schofield_2005_one-loop_yukawas_on_intersecting_branes5.pdf}, number = {06} } @article{Abel:2007:RealisticYukawaCouplings, title = {Realistic {{Yukawa Couplings}} through {{Instantons}} in {{Intersecting Brane Worlds}}}, author = {Abel, Steven A. and Goodsell, Mark D.}, date = {2007}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2007}, pages = {034--034}, issn = {1029-8479}, doi = {20071006031312}, abstract = {The Yukawa couplings of the simpler models of D-branes on toroidal orientifolds suffer from the so-called ``rank one'' problem -- there is only a single non-zero mass and no mixing. We consider the one-loop contribution of E2-instantons to Yukawa couplings on intersecting D6-branes, and show that they can solve the rank one problem. In addition they have the potential to provide a geometric explanation for the hierarchies observed in the Yukawa coupling. In order to do this we provide the necessary quantities for instanton calculus in this class of background.}, archivePrefix = {arXiv}, eprint = {hep-th/0612110}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/abel_goodsell_2007_realistic_yukawa_couplings_through_instantons_in_intersecting_brane_worlds8.pdf}, number = {10} } @article{Abel:2014:GeneticAlgorithmsSearch, title = {Genetic Algorithms and the Search for Viable String Vacua}, author = {Abel, Steven and Rizos, John}, date = {2014}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2014}, pages = {10}, issn = {1029-8479}, doi = {10/f6v8g4}, archivePrefix = {arXiv}, eprint = {1404.7359}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/abel_rizos_2014_genetic_algorithms_and_the_search_for_viable_string_vacua5.pdf}, langid = {english}, number = {8} } @article{Aldazabal:2000:DBranesSingularitiesBottomUp, title = {D-{{Branes}} at {{Singularities}} : {{A Bottom}}-{{Up Approach}} to the {{String Embedding}} of the {{Standard Model}}}, shorttitle = {D-{{Branes}} at {{Singularities}}}, author = {Aldazabal, Gerardo and Ibanez, Luis E. and Quevedo, Fernando and Uranga, Angel M.}, date = {2000}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2000}, pages = {002--002}, issn = {1029-8479}, doi = {10/dxtkc6}, abstract = {We propose a bottom-up approach to the building of particle physics models from string theory. Our building blocks are Type II D-branes which we combine appropriately to reproduce desirable features of a particle theory model: 1) Chirality ; 2) Standard Model group ; 3) N=1 or N=0 supersymmetry ; 4) Three quark-lepton generations. We start such a program by studying configurations of D=10, Type IIB D3-branes located at singularities. We study in detail the case of Z\_N, N=1,0 orbifold singularities leading to the SM group or some left-right symmetricextension. In general, tadpole cancellation conditions require the presence of additional branes, e.g. D7-branes. For the N=1 supersymmetric case the unique twist leading to three quark-lepton generations is Z\_3, predicting \$\textbackslash sin\^2\textbackslash theta\_W=3/14=0.21\$. The models obtained are the simplest semirealistic string models ever built. In the non-supersymmetric case there is a three-generation model for each Z\_N, N{$>$}4, but the Weinberg angle is in general too small. One can obtain a large class of D=4 compact models by considering the above structure embedded into a Calabi Yau compactification. We explicitly construct examples of such compact models using Z\_3 toroidal orbifolds and orientifolds, and discuss their properties. In these examples, global cancellation of RR charge may be achieved by adding anti-branes stuck at the fixed points, leading to models with hidden sector gravity-induced supersymmetry breaking. More general frameworks, like F-theory compactifications, allow completely \$\textbackslash NN=1\$ supersymmetric embeddings of our local structures, as we show in an explicit example.}, archivePrefix = {arXiv}, eprint = {hep-th/0005067}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/aldazabal_et_al_2000_d-branes_at_singularities.pdf}, number = {08} } @article{Altman:2019:EstimatingCalabiYauHypersurface, title = {Estimating {{Calabi}}-{{Yau}} Hypersurface and Triangulation Counts with Equation Learners}, author = {Altman, Ross and Carifio, Jonathan and Halverson, James and Nelson, Brent D.}, date = {2019}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2019}, pages = {186}, issn = {1029-8479}, doi = {10/gg66h4}, archivePrefix = {arXiv}, eprint = {1811.06490}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/altman_et_al_2019_estimating_calabi-yau_hypersurface_and_triangulation_counts_with_equation3.pdf}, langid = {english}, number = {3} } @article{Amati:1987:SuperstringCollisionsPlanckian, title = {Superstring Collisions at Planckian Energies}, author = {Amati, Daniele and Ciafaloni, Marcello and Veneziano, Gabriele}, date = {1987}, journaltitle = {Physics Letters B}, shortjournal = {Physics Letters B}, volume = {197}, pages = {81--88}, issn = {03702693}, doi = {10/bcmx6s}, file = {/home/riccardo/.local/share/zotero/files/amati_et_al_1987_superstring_collisions_at_planckian_energies3.pdf}, keywords = {archived}, langid = {english}, number = {1-2} } @article{Anastasopoulos:2012:LightStringyStates, title = {Light Stringy States}, author = {Anastasopoulos, Pascal and Bianchi, Massimo and Richter, Robert}, date = {2012}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2012}, pages = {68}, issn = {1029-8479}, doi = {10/f3sx4b}, abstract = {We carefully study the spectrum of open strings localized at the intersections of D6-branes and identify the lowest massive 'twisted' states and their vertex operators, paying particular attention to the signs of the intersection angles. We argue that the masses of the lightest states scale as M\^2 \textasciitilde{} \textbackslash theta M\^2\_s and can thus be parametrically smaller than the string scale. Relying on previous analyses, we compute scattering amplitudes of massless 'twisted' open strings and study their factorization, confirming the presence of the light massive states as sub-dominant poles in one of the channels.}, archivePrefix = {arXiv}, eprint = {1110.5424}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/anastasopoulos_et_al_2012_light_stringy_states5.pdf}, number = {3} } @article{Anastasopoulos:2013:ThreeFourpointCorrelators, title = {Three- and {{Four}}-Point Correlators of Excited Bosonic Twist Fields}, author = {Anastasopoulos, Pascal and Goodsell, Mark D. and Richter, Robert}, date = {2013}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2013}, pages = {182}, issn = {1029-8479}, doi = {10/gf66b5}, abstract = {We compute three- and four-point correlation functions containing excited bosonic twist fields. Our results can be used to determine properties, such as lifetimes and production rates, of massive string excitations localised at D-brane intersections, which could be signatures of a low string scale even if the usual string resonances are inaccessible to the LHC.}, archivePrefix = {arXiv}, eprint = {1305.7166}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/anastasopoulos_et_al_2013_three-_and_four-point_correlators_of_excited_bosonic_twist_fields9.pdf}, number = {10} } @article{Anderson:2008:MonadBundlesHeterotic, title = {Monad {{Bundles}} in {{Heterotic String Compactifications}}}, author = {Anderson, Lara B. and He, Yang-Hui and Lukas, Andre}, date = {2008}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2008}, pages = {104--104}, issn = {1029-8479}, doi = {10/b6d2hk}, abstract = {In this paper, we study positive monad vector bundles on complete intersection Calabi-Yau manifolds in the context of E8 x E8 heterotic string compactifications. We show that the class of such bundles, subject to the heterotic anomaly condition, is finite and consists of about 7000 models. We explain how to compute the complete particle spectrum for these models. In particular, we prove the absence of vector-like family anti-family pairs in all cases. We also verify a set of highly non-trivial necessary conditions for the stability of the bundles. A full stability proof will appear in a companion paper. A scan over all models shows that even a few rudimentary physical constraints reduces the number of viable models drastically.}, archivePrefix = {arXiv}, eprint = {0805.2875}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/anderson_et_al_2008_monad_bundles_in_heterotic_string_compactifications2.pdf;/home/riccardo/.local/share/zotero/storage/CNAITI5B/0805.html}, number = {07} } @article{Anderson:2014:ComprehensiveScanHeterotic, title = {A {{Comprehensive Scan}} for {{Heterotic SU}}(5) {{GUT}} Models}, author = {Anderson, Lara B. and Constantin, Andrei and Gray, James and Lukas, Andre and Palti, Eran}, date = {2014}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2014}, pages = {47}, issn = {1029-8479}, doi = {10/ghf4nq}, archivePrefix = {arXiv}, eprint = {1307.4787}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/anderson_et_al_2014_a_comprehensive_scan_for_heterotic_su(5)_gut_models.pdf}, langid = {english}, number = {1} } @article{Anderson:2016:NewConstructionCalabiYau, title = {A {{New Construction}} of {{Calabi}}-{{Yau Manifolds}}: {{Generalized CICYs}}}, shorttitle = {A {{New Construction}} of {{Calabi}}-{{Yau Manifolds}}}, author = {Anderson, Lara B. and Apruzzi, Fabio and Gao, Xin and Gray, James and Lee, Seung-Joo}, date = {2016}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {906}, pages = {441--496}, issn = {05503213}, doi = {10/f8kd3j}, abstract = {We present a generalization of the complete intersection in products of projective space (CICY) construction of Calabi-Yau manifolds. CICY three-folds and four-folds have been studied extensively in the physics literature. Their utility stems from the fact that they can be simply described in terms of a `configuration matrix', a matrix of integers from which many of the details of the geometries can be easily extracted. The generalization we present is to allow negative integers in the configuration matrices which were previously taken to have positive semi-definite entries. This broadening of the complete intersection construction leads to a larger class of Calabi-Yau manifolds than that considered in previous work, which nevertheless enjoys much of the same degree of calculational control. These new Calabi-Yau manifolds are complete intersections in (not necessarily Fano) ambient spaces with an effective anticanonical class. We find examples with topology distinct from any that has appeared in the literature to date. The new manifolds thus obtained have many interesting features. For example, they can have smaller Hodge numbers than ordinary CICYs and lead to many examples with elliptic and K3-fibration structures relevant to F-theory and string dualities.}, archivePrefix = {arXiv}, eprint = {1507.03235}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/anderson_et_al_2016_a_new_construction_of_calabi-yau_manifolds2.pdf;/home/riccardo/.local/share/zotero/storage/GWD2QTX5/1507.html} } @article{Anderson:2017:FibrationsCICYThreefolds, title = {Fibrations in {{CICY}} Threefolds}, author = {Anderson, Lara B. and Gao, Xin and Gray, James and Lee, Seung-Joo}, date = {2017}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2017}, pages = {77}, issn = {1029-8479}, doi = {10/ggkmrn}, archivePrefix = {arXiv}, eprint = {1708.07907}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/anderson_et_al_2017_fibrations_in_cicy_threefolds4.pdf}, langid = {english}, number = {10} } @online{Anderson:2018:TASILecturesGeometric, title = {{{TASI Lectures}} on {{Geometric Tools}} for {{String Compactifications}}}, author = {Anderson, Lara B. and Karkheiran, Mohsen}, date = {2018}, doi = {10/gg66m7}, abstract = {In this work we provide a self-contained and modern introduction to some of the tools, obstacles and open questions arising in string compactifications. Techniques and current progress are illustrated in the context of smooth heterotic string compactifications to 4-dimensions. Progress is described on bounding and enumerating possible string backgrounds and their properties. We provide an overview of constructions, partial classifications, and moduli problems associated to Calabi-Yau manifolds and holomorphic bundles over them.}, archivePrefix = {arXiv}, eprint = {1804.08792}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/anderson_karkheiran_2018_tasi_lectures_on_geometric_tools_for_string_compactifications.pdf} } @article{Angelantonj:2000:TypeIStringsMagnetised, title = {Type-{{I}} Strings on Magnetised Orbifolds and Brane Transmutation}, author = {Angelantonj, Carlo and Antoniadis, Ignatios and Dudas, Emilian and Sagnotti, Augusto}, date = {2000}, journaltitle = {Physics Letters B}, shortjournal = {Physics Letters B}, volume = {489}, pages = {223--232}, issn = {03702693}, doi = {10/cc5skj}, abstract = {In the presence of internal magnetic fields, a D9 brane can acquire a D5 (or anti-D5) R-R charge, and can therefore contribute to the corresponding tadpole. In the resulting vacua, supersymmetry is generically broken and tachyonic instabilities are present. However, suitable choices for the magnetic fields, corresponding to self-dual configurations in the internal space, can yield new chiral supersymmetric vacua with gauge groups of reduced rank, where the magnetic energy saturates, partly or fully, the negative tension of the O5+ planes. These models contain Green-Schwarz couplings to untwisted R-R forms not present in conventional orientifolds.}, archivePrefix = {arXiv}, eprint = {hep-th/0007090}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/angelantonj_et_al_2000_type-i_strings_on_magnetised_orbifolds_and_brane_transmutation.pdf}, number = {1-2} } @online{Angelantonj:2002:OpenStrings, title = {Open {{Strings}}}, author = {Angelantonj, Carlo and Sagnotti, Augusto}, date = {2002}, doi = {10/c8f2xd}, abstract = {This review is devoted to open strings, and in particular to the often surprising features of their spectra. It follows and summarizes developments that took place mainly at the University of Rome “Tor Vergata” over the last decade, and centred on world-sheet aspects of the constructions now commonly referred to as “orientifolds”. Our presentation aims to bridge the gap between the world-sheet analysis, that first exhibited many of the novel features of these systems, and their geometric description in terms of extended objects, D-branes and O-planes, contributed by many other colleagues, and most notably by J. Polchinski. We therefore proceed through a number of prototype examples, starting from the bosonic string and moving on to ten-dimensional fermionic strings and their toroidal and orbifold compactifications, in an attempt to guide the reader in a self-contained journey to the more recent developments related to the breaking of supersymmetry.}, archivePrefix = {arXiv}, eprint = {hep-th/0204089}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/angelantonj_sagnotti_2002_open_strings.pdf} } @online{Ardizzone:2019:AnalyzingInverseProblems, title = {Analyzing {{Inverse Problems}} with {{Invertible Neural Networks}}}, author = {Ardizzone, Lynton and Kruse, Jakob and Wirkert, Sebastian and Rahner, Daniel and Pellegrini, Eric W. and Klessen, Ralf S. and Maier-Hein, Lena and Rother, Carsten and Köthe, Ullrich}, date = {2019}, url = {http://arxiv.org/abs/1808.04730}, abstract = {In many tasks, in particular in natural science, the goal is to determine hidden system parameters from a set of measurements. Often, the forward process from parameter- to measurement-space is a well-defined function, whereas the inverse problem is ambiguous: one measurement may map to multiple different sets of parameters. In this setting, the posterior parameter distribution, conditioned on an input measurement, has to be determined. We argue that a particular class of neural networks is well suited for this task -- so-called Invertible Neural Networks (INNs). Although INNs are not new, they have, so far, received little attention in literature. While classical neural networks attempt to solve the ambiguous inverse problem directly, INNs are able to learn it jointly with the well-defined forward process, using additional latent output variables to capture the information otherwise lost. Given a specific measurement and sampled latent variables, the inverse pass of the INN provides a full distribution over parameter space. We verify experimentally, on artificial data and real-world problems from astrophysics and medicine, that INNs are a powerful analysis tool to find multi-modalities in parameter space, to uncover parameter correlations, and to identify unrecoverable parameters.}, archivePrefix = {arXiv}, eprint = {1808.04730}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/ardizzone_et_al_2019_analyzing_inverse_problems_with_invertible_neural_networks.pdf;/home/riccardo/.local/share/zotero/storage/NQJPI658/1808.html} } @article{Arduino:2020:OriginDivergencesTimeDependent, title = {On the {{Origin}} of {{Divergences}} in {{Time}}-{{Dependent Orbifolds}}}, author = {Arduino, Andrea and Finotello, Riccardo and Pesando, Igor}, date = {2020}, journaltitle = {The European Physical Journal C}, shortjournal = {Eur. Phys. J. C}, volume = {80}, pages = {476}, issn = {1434-6044, 1434-6052}, doi = {10/gg54bw}, abstract = {We consider time-dependent orbifolds in String Theory and we show that divergences are not associated with a gravitational backreaction since they appear in the open string sector too. They are related to the non existence of the underlying effective field theory as in several cases fourth and higher order contact terms do not exist. Since contact terms may arise from the exchange of string massive states, we investigate and show that some three points amplitudes with one massive state in the open string sector are divergent on the time-dependent orbifolds. To check that divergences are associated with the existence of a discrete zero eigenvalue of the Laplacian of the subspace with vanishing volume, we construct the Generalized Null Boost Orbifold where this phenomenon can be turned on and off.}, archivePrefix = {arXiv}, eprint = {2002.11306}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/arduino_et_al_2020_on_the_origin_of_divergences_in_time-dependent_orbifolds2.pdf;/home/riccardo/.local/share/zotero/storage/QNJXWD2H/2002.html}, number = {5} } @online{Ashmore:2020:MachineLearningCalabiYau, title = {Machine Learning {{Calabi}}-{{Yau}} Metrics}, author = {Ashmore, Anthony and He, Yang-Hui and Ovrut, Burt}, date = {2020}, doi = {10/ghf4nr}, abstract = {We apply machine learning to the problem of finding numerical Calabi-Yau metrics. Building on Donaldson's algorithm for calculating balanced metrics on K\textbackslash "ahler manifolds, we combine conventional curve fitting and machine-learning techniques to numerically approximate Ricci-flat metrics. We show that machine learning is able to predict the Calabi-Yau metric and quantities associated with it, such as its determinant, having seen only a small sample of training data. Using this in conjunction with a straightforward curve fitting routine, we demonstrate that it is possible to find highly accurate numerical metrics much more quickly than by using Donaldson's algorithm alone, with our new machine-learning algorithm decreasing the time required by between one and two orders of magnitude.}, archivePrefix = {arXiv}, eprint = {1910.08605}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/ashmore_et_al_2019_machine_learning_calabi-yau_metrics.pdf;/home/riccardo/.local/share/zotero/files/ashmore_et_al_2020_machine_learning_calabi-yau_metrics.pdf;/home/riccardo/.local/share/zotero/storage/GFKCJ822/1910.html} } @article{Ashok:2004:CountingFluxVacua, title = {Counting {{Flux Vacua}}}, author = {Ashok, Sujay K. and Douglas, Michael R.}, date = {2004}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2004}, pages = {060--060}, issn = {1029-8479}, doi = {10/fqsf7n}, archivePrefix = {arXiv}, eprint = {hep-th/0307049}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/ashok_douglas_2004_counting_flux_vacua2.pdf}, keywords = {archived}, number = {01} } @article{Bachas:2002:NullBraneIntersections, title = {Null {{Brane Intersections}}}, author = {Bachas, Constantin and Hull, Chris}, date = {2002}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2002}, pages = {035--035}, issn = {1029-8479}, doi = {10/b4h4q3}, abstract = {We study pairs of planar D-branes intersecting on null hypersurfaces, and other related configurations. These are supersymmetric and have finite energy density. They provide open-string analogues of the parabolic orbifold and null-fluxbrane backgrounds for closed superstrings. We derive the spectrum of open strings, showing in particular that if the D-branes are shifted in a spectator dimension so that they do not intersect, the open strings joining them have no asymptotic states. As a result, a single non-BPS excitation can in this case catalyze a condensation of massless modes, changing significantly the underlying supersymmetric vacuum state. We argue that a similar phenomenon can modify the null cosmological singularity of the time-dependent orbifolds. This is a stringy mechanism, distinct from black-hole formation and other strong gravitational instabilities, and one that should dominate at weak string coupling. A by-product of our analysis is a new understanding of the appearance of 1/4 BPS threshold bound states, at special points in the moduli space of toroidally-compactified type-II string theory.}, archivePrefix = {arXiv}, eprint = {hep-th/0210269}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/bachas_hull_2002_null_brane_intersections.pdf;/home/riccardo/.local/share/zotero/storage/RG2NPWNH/0210269.html}, number = {12} } @article{Bachas:2003:RelativisticStringPulse, title = {Relativistic {{String}} in a {{Pulse}}}, author = {Bachas, Constantin}, date = {2003}, journaltitle = {Annals of Physics}, shortjournal = {Annals of Physics}, volume = {305}, pages = {286--309}, issn = {00034916}, doi = {10/dwshqh}, abstract = {I study a relativistic open string coupling through its endpoints to a plane wave with arbitrary temporal profile. The string's transverse oscillations respond linearly to the external field. This makes it possible to solve the classical equations, and to calculate the quantum-mechanical S-matrix in closed form. I analyze the dynamics of the string as the characteristic frequency and duration of the pulse are continuously varied. I derive, in particular, the multipole expansion in the adiabatic limit of very long wavelengths, and discuss also more violent phenomena such as shock waves, cusps and null brane intersections. Apart from their relevance to the study of time-dependence in superstring theory, these results could have other applications, such as the teleportation of gravitational wave bursts by cosmic strings.}, archivePrefix = {arXiv}, eprint = {hep-th/0212217}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/bachas_2003_relativistic_string_in_a_pulse.pdf}, number = {2} } @article{Baxter:2000:ModelInductiveBias, title = {A Model of Inductive Bias Learning}, author = {Baxter, Jonathan}, date = {2000}, journaltitle = {Journal of artificial intelligence research}, volume = {12}, pages = {149--198}, doi = {10/gg66h8}, file = {/home/riccardo/.local/share/zotero/files/baxter_2000_a_model_of_inductive_bias_learning3.pdf} } @article{Bergstra:2012:RandomSearchHyperparameter, title = {Random Search for Hyper-Parameter Optimization}, author = {Bergstra, James and Bengio, Yoshua}, date = {2012}, journaltitle = {Journal of Machine Learning Research}, volume = {13}, pages = {281--305}, file = {/home/riccardo/.local/share/zotero/files/bergstra_bengio_2012_random_search_for_hyper-parameter_optimization.pdf}, issue = {Feb} } @article{Berkooz:1996:BranesIntersectingAngles, title = {Branes {{Intersecting}} at {{Angles}}}, author = {Berkooz, Micha and Douglas, Michael R. and Leigh, Robert G.}, date = {1996}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {480}, pages = {265--278}, issn = {05503213}, doi = {10/fjff5p}, abstract = {We show that configurations of multiple D-branes related by SU(N) rotations will preserve unbroken supersymmetry. This includes cases in which two D-branes are related by a rotation of arbitrarily small angle, and we discuss some of the physics of this. In particular, we discuss a way of obtaining 4D chiral fermions on the intersection of D-branes. We also rephrase the condition for unbroken supersymmety as the condition that a `generalized holonomy group' associated with the brane configuration and manifold is reduced, and relate this condition (in Type IIA string theory) to a condition in eleven dimensions.}, archivePrefix = {arXiv}, eprint = {hep-th/9606139}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/berkooz_et_al_1996_branes_intersecting_at_angles5.pdf}, number = {1-2} } @article{Berkooz:2003:CommentsCosmologicalSingularities, title = {Comments on Cosmological Singularities in String Theory}, author = {Berkooz, Micha and Craps, Ben and Kutasov, David and Rajesh, Govindan}, date = {2003}, journaltitle = {Journal of High Energy Physics}, volume = {2003}, pages = {031--031}, issn = {1029-8479}, doi = {10/c9rfmc}, abstract = {We compute string scattering amplitudes in an orbifold of Minkowski space by a boost, and show how certain divergences in the four point function are associated with graviton exchange near the singularity. These divergences reflect large tree-level backreaction of the gravitational field. Near the singularity, all excitations behave like massless fields on a 1+1 dimensional cylinder. For excitations that are chiral near the singularity, we show that divergences are avoided and that the backreaction is milder. We discuss the implications of this for some cosmological spacetimes. Finally, in order to gain some intuition about what happens when backreaction is taken into account, we study an open string rolling tachyon background as a toy model that shares some features with R\^\{1,1\}/Z.}, archivePrefix = {arXiv}, eprint = {hep-th/0212215}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/berkooz_et_al_2003_comments_on_cosmological_singularities_in_string_theory.pdf}, number = {03} } @article{Berkooz:2003:StringsElectricField, title = {Strings in an Electric Field, and the {{Milne Universe}}}, author = {Berkooz, Micha and Pioline, Boris}, date = {2003}, journaltitle = {Journal of Cosmology and Astroparticle Physics}, shortjournal = {J. Cosmol. Astropart. Phys.}, volume = {2003}, pages = {007--007}, issn = {1475-7516}, doi = {10/bh47tt}, abstract = {Arguably the simplest model of a cosmological singularity in string theory, the Lorentzian orbifold \$\textbackslash Real\^\{1,1\}/boost\$ is known to lead to severe divergences in scattering amplitudes of untwisted states, indicating a large backreaction toward the singularity. In this work we take a first step in investigating whether condensation of twisted states may remedy this problem and resolve the spacelike singularity. By using the formal analogy with charged open strings in an electric field, we argue that, contrary to earlier claims, twisted sectors do contain physical scattering states, which can be viewed as charged particles in an electric field. Correlated pairs of twisted states will therefore be produced, by the ordinary Schwinger mechanism. For open strings in an electric field, on-shell wave functions for the zero-modes are determined, and shown to analytically continue to non-normalizable modes of the usual Landau harmonic oscillator in Euclidean space. Closed strings scattering states of the Milne orbifold continue to non-normalizable modes in an unusual Euclidean orbifold of \$\textbackslash Real\^2\$ by a rotation by an irrational angle. Irrespective of the formal analogy with the Milne Universe, open strings in a constant electric field, or colliding D-branes, may also serve as a useful laboratory to study time-dependence in string theory.}, archivePrefix = {arXiv}, eprint = {hep-th/0307280}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/berkooz_pioline_2003_strings_in_an_electric_field,_and_the_milne_universe.pdf}, number = {11} } @article{Berkooz:2007:ShortReviewTime, title = {A {{Short Review}} of {{Time Dependent Solutions}} and {{Space}}-like {{Singularities}} in {{String Theory}}}, author = {Berkooz, Micha and Reichmann, Dori}, date = {2007}, journaltitle = {Nuclear Physics B - Proceedings Supplements}, shortjournal = {Nuclear Physics B - Proceedings Supplements}, volume = {171}, pages = {69--87}, issn = {09205632}, doi = {10/fnjt32}, abstract = {These lecture notes provide a short review of the status of time dependent backgrounds in String theory, and in particular those that contain space-like singularities. Despite considerable efforts, we do not have yet a full and compelling picture of such backgrounds. We review some of the various attempts to understand these singularities via generalizations of the BKL dynamics, using worldsheet methods and using non-perturbative tools such as the AdS/CFT correspondence and M(atrix) theory. These lecture notes are based on talks given at Cargese 06 and the dead-sea conference 06.}, archivePrefix = {arXiv}, eprint = {0705.2146}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/berkooz_reichmann_2007_a_short_review_of_time_dependent_solutions_and_space-like_singularities_in.pdf;/home/riccardo/.local/share/zotero/storage/6E7HYPT8/0705.html} } @article{Bianchi:2005:OpenStoryMagnetic, title = {The Open Story of the Magnetic Fluxes}, author = {Bianchi, Massimo and Trevigne, Elisa}, date = {2005}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2005}, pages = {034--034}, issn = {1029-8479}, doi = {10/bjnzck}, abstract = {We discuss the effects of oblique internal magnetic fields on the spectrum of type I superstrings compactified on tori. In particular we derive general formulae for the magnetic shifts and multiplicities of open strings connecting D9-branes with arbitrary magnetic fluxes. We discuss the flux induced potential and offer an interpretation of the stabilization of R-R moduli associated to deformations of the complex structure of T\^6 in terms of non-derivative mixing with NS-NS moduli. Finally we briefly comment on how to extract other low energy couplings and generalize our results to toroidal orbifolds and other configurations governed by rational conformal field theories on the worldsheet.}, archivePrefix = {arXiv}, eprint = {hep-th/0502147}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/bianchi_trevigne_2005_the_open_story_of_the_magnetic_fluxes5.pdf}, number = {08} } @article{Bizet:2020:TestingSwamplandConjectures, title = {Testing Swampland Conjectures with Machine Learning}, author = {Bizet, Nana Cabo and Damian, Cesar and Loaiza-Brito, Oscar and Mayorga Peña, Damián Kaloni and Montañez-Barrera, J. A.}, date = {2020}, journaltitle = {The European Physical Journal C}, shortjournal = {Eur. Phys. J. C}, volume = {80}, pages = {766}, issn = {1434-6044, 1434-6052}, doi = {10/ghf4ns}, abstract = {Abstract We consider Type IIB compactifications on an isotropic torus \$\$T\^6\$\$ T 6 threaded by geometric and non geometric fluxes. For this particular setup we apply supervised machine learning techniques, namely an artificial neural network coupled to a genetic algorithm, in order to obtain more than sixty thousand flux configurations yielding to a scalar potential with at least one critical point. We observe that both stable AdS vacua with large moduli masses and small vacuum energy as well as unstable dS vacua with small tachyonic mass and large energy are absent, in accordance to the refined de Sitter conjecture. Moreover, by considering a hierarchy among fluxes, we observe that perturbative solutions with small values for the vacuum energy and moduli masses are favored, as well as scenarios in which the lightest modulus mass is much smaller than the corresponding AdS vacuum scale. Finally we apply some results on random matrix theory to conclude that the most probable mass spectrum derived from this string setup is that satisfying the Refined de Sitter and AdS scale conjectures.}, archivePrefix = {arXiv}, eprint = {2006.07290}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/bizet_et_al_2020_testing_swampland_conjectures_with_machine_learning.pdf}, langid = {english}, number = {8} } @article{Black:2012:HighEnergyString, title = {High Energy String–Brane Scattering for Massive States}, author = {Black, William and Monni, Cristina}, date = {2012}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {859}, pages = {299--320}, issn = {05503213}, doi = {10/gg66ng}, archivePrefix = {arXiv}, eprint = {1107.4321}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/black_monni_2012_high_energy_string–brane_scattering_for_massive_states.pdf}, keywords = {archived}, langid = {english}, number = {3} } @article{Blumenhagen:2005:StatisticsSupersymmetricDbrane, title = {The Statistics of Supersymmetric {{D}}-Brane Models}, author = {Blumenhagen, Ralph and Gmeiner, Florian and Honecker, Gabriele and Lüst, Dieter and Weigand, Timo}, date = {2005}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {713}, pages = {83--135}, issn = {05503213}, doi = {10/dxmsqx}, archivePrefix = {arXiv}, eprint = {hep-th/0411173}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/blumenhagen_et_al_2005_the_statistics_of_supersymmetric_d-brane_models.pdf}, keywords = {archived}, langid = {english}, number = {1-3} } @book{Blumenhagen:2009:IntroductionConformalField, title = {Introduction to {{Conformal Field Theory}}}, author = {Blumenhagen, Ralph and Plauschinn, Erik}, date = {2009}, volume = {779}, publisher = {{Springer}}, location = {{Berlin, Heidelberg}}, url = {http://link.springer.com/10.1007/978-3-642-00450-6}, file = {/home/riccardo/.local/share/zotero/files/blumenhagen_plauschinn_2009_introduction_to_conformal_field_theory.pdf}, isbn = {978-3-642-00449-0}, langid = {english}, series = {Lecture {{Notes}} in {{Physics}}} } @article{Bousso:2000:QuantizationFourformFluxes, title = {Quantization of {{Four}}-Form {{Fluxes}} and {{Dynamical Neutralization}} of the {{Cosmological Constant}}}, author = {Bousso, Raphael and Polchinski, Joseph}, date = {2000}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2000}, pages = {006--006}, issn = {1029-8479}, doi = {10/fwrxdr}, abstract = {A four-form gauge flux makes a variable contribution to the cosmological constant. This has often been assumed to take continuous values, but we argue that it has a generalized Dirac quantization condition. For a single flux the steps are much larger than the observational limit, but we show that with multiple fluxes the allowed values can form a sufficiently dense `discretuum'. Multiple fluxes generally arise in M theory compactifications on manifolds with non-trivial three-cycles. In theories with large extra dimensions a few four-forms suffice; otherwise of order 100 are needed. Starting from generic initial conditions, the repeated nucleation of membranes dynamically generates regions with a cosmological constant in the observational range. Entropy and density perturbations can be produced.}, archivePrefix = {arXiv}, eprint = {hep-th/0004134}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/bousso_polchinski_2000_quantization_of_four-form_fluxes_and_dynamical_neutralization_of_the.pdf}, number = {06} } @inproceedings{Brennan:2018:StringLandscapeSwampland, title = {The {{String Landscape}}, the {{Swampland}}, and the {{Missing Corner}}}, booktitle = {Proceedings of {{Theoretical Advanced Study Institute Summer School}} 2017 "{{Physics}} at the {{Fundamental Frontier}}"}, author = {Brennan, Theodore Daniel and Carta, Federico and Vafa, Cumrun}, date = {2018}, pages = {015}, publisher = {{Sissa Medialab}}, location = {{Boulder, Colorado}}, doi = {10/ghf4nt}, archivePrefix = {arXiv}, eprint = {1711.00864}, eprinttype = {arxiv}, eventtitle = {Theoretical {{Advanced Study Institute Summer School}} 2017 "{{Physics}} at the {{Fundamental Frontier}}"}, file = {/home/riccardo/.local/share/zotero/files/vafa_et_al_2018_the_string_landscape,_the_swampland,_and_the_missing_corner.pdf}, keywords = {archived}, langid = {english} } @article{Brodie:2020:MachineLearningLine, title = {Machine {{Learning Line Bundle Cohomology}}}, author = {Brodie, Callum R. and Constantin, Andrei and Deen, Rehan and Lukas, Andre}, date = {2020}, journaltitle = {Fortschritte der Physik}, shortjournal = {Fortschr. Phys.}, volume = {68}, pages = {1900087}, issn = {0015-8208, 1521-3978}, doi = {10/gg66m6}, archivePrefix = {arXiv}, eprint = {1906.08730}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/brodie_et_al_2020_machine_learning_line_bundle_cohomology3.pdf}, keywords = {archived}, langid = {english}, number = {1} } @article{Bull:2018:MachineLearningCICY, title = {Machine Learning {{CICY}} Threefolds}, author = {Bull, Kieran and He, Yang-Hui and Jejjala, Vishnu and Mishra, Challenger}, date = {2018}, journaltitle = {Physics Letters B}, shortjournal = {Physics Letters B}, volume = {785}, pages = {65--72}, issn = {03702693}, doi = {10/gfm446}, archivePrefix = {arXiv}, eprint = {1806.03121}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/bull_et_al_2018_machine_learning_cicy_threefolds5.pdf}, keywords = {archived}, langid = {english} } @article{Bull:2019:GettingCICYHigh, title = {Getting {{CICY}} High}, author = {Bull, Kieran and He, Yang-Hui and Jejjala, Vishnu and Mishra, Challenger}, date = {2019}, journaltitle = {Physics Letters B}, shortjournal = {Physics Letters B}, volume = {795}, pages = {700--706}, issn = {03702693}, doi = {10/gg66m5}, archivePrefix = {arXiv}, eprint = {1903.03113}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/bull_et_al_2019_getting_cicy_high3.pdf}, keywords = {archived}, langid = {english} } @article{Burwick:1991:GeneralYukawaCouplings, title = {General {{Yukawa}} Couplings of Strings on Orbifolds}, author = {Burwick, Thomas T. and Kaiser, Ralf K. and Müller, H. F.}, date = {1991}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {355}, pages = {689--711}, issn = {05503213}, doi = {10/c56dxj}, file = {/home/riccardo/.local/share/zotero/files/burwick_et_al_1991_general_yukawa_couplings_of_strings_on_orbifolds.pdf}, keywords = {archived}, langid = {english}, number = {3} } @online{Caffo::DataScienceSpecialization, title = {Data {{Science Specialization}}}, author = {Caffo, Brian and Leek, Jeff and Peng, Roger D.}, url = {https://www.coursera.org/specializations/jhu-data-science}, organization = {{Coursera}} } @inproceedings{Calabi:1957:KahlerManifoldsVanishing, title = {On {{Kähler}} Manifolds with Vanishing Canonical Class}, booktitle = {Algebraic Geometry and Topology. {{A}} Symposium in Honor of {{S}}. {{Lefschetz}}.}, author = {Calabi, Eugenio}, date = {1957}, volume = {12}, pages = {78--89}, doi = {10/ghf4nv}, file = {/home/riccardo/.local/share/zotero/files/calabi_1957_on_kähler_manifolds_with_vanishing_canonical_class.pdf} } @article{Candelas:1985:VacuumConfigurationsSuperstrings, title = {Vacuum Configurations for Superstrings}, author = {Candelas, Philip and Horowitz, Gary T. and Strominger, Andrew and Witten, Edward}, date = {1985}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {258}, pages = {46--74}, issn = {05503213}, doi = {10/bxjjzx}, abstract = {We study candidate vacuum configurations in ten-dimensional O(32) and E8 × E8 supergravity and superstring theory that have unbroken N = 1 supersymmetry in four dimensions. This condition permits only a few possibilities, all of which have vanishing cosmological constant. In the E8 × E8 case, one of these possibilities leads to a model that in four dimensions has an E6 gauge group with four standard generations of fermions.}, file = {/home/riccardo/.local/share/zotero/files/candelas_et_al_1985_vacuum_configurations_for_superstrings.pdf}, keywords = {archived}, langid = {english} } @article{Candelas:1988:CompleteIntersectionCalabiYau, title = {Complete Intersection {{Calabi}}-{{Yau}} Manifolds}, author = {Candelas, Philip and Dale, A. M. and Lütken, Carsten Andrew and Schimmrigk, Rolf}, date = {1988}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {298}, pages = {493--525}, issn = {05503213}, doi = {10/cbx253}, file = {/home/riccardo/.local/share/zotero/files/candelas_et_al_1988_complete_intersection_calabi-yau_manifolds3.pdf}, keywords = {archived}, langid = {english}, number = {3} } @online{CaramelloJr:2019:IntroductionOrbifolds, title = {Introduction to Orbifolds}, author = {Caramello Jr, Francisco C.}, date = {2019}, abstract = {We introduce orbifolds from the classical point of view, using charts, and present orbifold versions of elementary objects from Algebraic Topology -- such as the fundamental group, coverings and Euler characteristic -- Differential Topology/Geometry -- including orbibundles, differential forms, integration and (equivariant) De Rham cohomology -- and Riemannian Geometry, surveying generalizations of classical theorems to this setting.}, archivePrefix = {arXiv}, eprint = {1909.08699}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/caramello_jr_2019_introduction_to_orbifolds.pdf;/home/riccardo/.local/share/zotero/storage/N6FSCMLT/1909.html} } @article{Carifio:2017:MachineLearningString, title = {Machine Learning in the String Landscape}, author = {Carifio, Jonathan and Halverson, James and Krioukov, Dmitri and Nelson, Brent D.}, date = {2017}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2017}, pages = {157}, issn = {1029-8479}, doi = {10/gb4szm}, archivePrefix = {arXiv}, eprint = {1707.00655}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/carifio_et_al_2017_machine_learning_in_the_string_landscape5.pdf}, langid = {english}, number = {9} } @article{Caruana:1997:MultitaskLearning, title = {Multitask Learning}, author = {Caruana, Rich}, date = {1997}, journaltitle = {Machine learning}, volume = {28}, pages = {41--75}, doi = {10/d3gsgj}, file = {/home/riccardo/.local/share/zotero/files/caruana_1997_multitask_learning3.pdf}, number = {1} } @inproceedings{Caruana:2006:EmpiricalComparisonSupervised, title = {An Empirical Comparison of Supervised Learning Algorithms}, booktitle = {Proceedings of the 23rd International Conference on {{Machine}} Learning}, author = {Caruana, Rich and Niculescu-Mizil, Alexandru}, date = {2006}, pages = {161--168}, file = {/home/riccardo/.local/share/zotero/files/caruana_niculescu-mizil_2006_an_empirical_comparison_of_supervised_learning_algorithms.pdf} } @article{Chamoun:2004:FermionMassesMixing, title = {Fermion Masses and Mixing in Intersecting Brane Scenarios}, author = {Chamoun, Nidal and Khalil, Shaaban and Lashin, Elsayed}, date = {2004}, journaltitle = {Physical Review D}, shortjournal = {Phys. Rev. D}, volume = {69}, pages = {095011}, issn = {1550-7998, 1550-2368}, doi = {10/dbfm3j}, archivePrefix = {arXiv}, eprint = {hep-ph/0309169}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/chamoun_et_al_2004_fermion_masses_and_mixing_in_intersecting_brane_scenarios.pdf}, keywords = {archived}, langid = {english}, number = {9} } @article{Chan:1969:GeneralizedVenezianoModel, title = {Generalized {{Veneziano}} Model with Isospin}, author = {Chan, Hong-Mo and Paton, Jack E.}, date = {1969}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {10}, pages = {516--520}, issn = {05503213}, doi = {10/chp79v}, file = {/home/riccardo/.local/share/zotero/files/paton_chan_hong-mo_1969_generalized_veneziano_model_with_isospin.pdf}, keywords = {archived}, langid = {english}, number = {3} } @article{Chen:2008:RealisticWorldIntersecting, title = {A {{Realistic World}} from {{Intersecting D6}}-{{Branes}}}, author = {Chen, Ching-Ming and Li, Tianjun and Mayes, van Eric and Nanopoulos, Dimitri V.}, date = {2008}, journaltitle = {Physics Letters B}, shortjournal = {Physics Letters B}, volume = {665}, pages = {267--270}, issn = {03702693}, doi = {10/b25m9j}, abstract = {We briefly describe a three-family intersecting D6-brane model in Type IIA theory on the T\^6/(Z\_2 x Z\_2) orientifold with a realistic phenomenology. In this model, the gauge symmetry can be broken down to the Standard Model (SM) gauge symmetry close to the string scale, and the gauge coupling unification can be achieved. We calculate the supersymmetry breaking soft terms, and the corresponding low energy supersymmetric particle spectrum, which may be tested at the Large Hadron Collider (LHC). The observed dark matter density may also be generated. Finally, we can explain the SM quark masses and CKM mixings, and the tau lepton mass. The neutrino masses and mixings may be generated via the seesaw mechanism as well.}, archivePrefix = {arXiv}, eprint = {hep-th/0703280}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/chen_et_al_2008_a_realistic_world_from_intersecting_d6-branes.pdf}, number = {4} } @article{Chen:2008:RealisticYukawaTextures, title = {Realistic {{Yukawa Textures}} and {{SUSY Spectra}} from {{Intersecting Branes}}}, author = {Chen, Ching-Ming and Li, Tianjun and Mayes, van Eric and Nanopoulos, Dimitri V.}, date = {2008}, journaltitle = {Physical Review D}, shortjournal = {Phys. Rev. D}, volume = {77}, pages = {125023}, issn = {1550-7998, 1550-2368}, doi = {10/c3gb98}, abstract = {We study the possible phenomenology of a three-family Pati-Salam model constructed from intersecting D6-branes in Type IIA string theory on the T\^6/(Z2 x Z2) orientifold with some desirable semi-realistic features. In the model, tree-level gauge coupling unification is achieved automatically at the string scale, and the gauge symmetry may be broken to the Standard Model (SM) close to the string scale. The small number of extra chiral exotic states in the model may be decoupled via the Higgs mechanism and strong dynamics. We calculate the possible supersymmetry breaking soft terms and the corresponding low-energy supersymmetric particle spectra which may potentially be tested at the Large Hadron Collider (LHC). We find that for the viable regions of the parameter space the lightest CP-even Higgs boson mass usually satisfies m\_H {$<$} 120 GeV, and the observed dark matter density may be generated. Finally, we find that it is possible to obtain correct SM quark masses and mixings, and the tau lepton mass at the unification scale. Additionally, neutrino masses and mixings may be generated via the seesaw mechanism. Mechanisms to stabilize the open and closed-string moduli, which are necessary for the model to be truly viable and to make definite predictions are discussed.}, archivePrefix = {arXiv}, eprint = {0711.0396}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/chen_et_al_2008_realistic_yukawa_textures_and_susy_spectra_from_intersecting_branes.pdf}, number = {12} } @book{Chollet:2018:DeepLearningPython, title = {Deep {{Learning}} with {{Python}}}, author = {Chollet, François}, date = {2018}, publisher = {{Manning Publications Co.}}, location = {{Shelter Island, New York}}, url = {https://www.manning.com/books/deep-learning-with-python}, abstract = {Deep Learning with Python introduces the field of deep learning using the Python language and the powerful Keras library. Written by Keras creator and Google AI researcher François Chollet, this book builds your understanding through intuitive explanations and practical examples. You'll explore challenging concepts and practice with applications in computer vision, natural-language processing, and generative models. By the time you finish, you'll have the knowledge and hands-on skills to apply deep learning in your own projects.}, file = {/home/riccardo/.local/share/zotero/files/chollet_2018_deep_learning_with_python.pdf}, isbn = {978-1-61729-443-3}, langid = {english}, pagetotal = {361} } @online{Cleaver:2007:SearchMinimalSupersymmetric, title = {In {{Search}} of the ({{Minimal Supersymmetric}}) {{Standard Model String}}}, author = {Cleaver, Gerald B.}, date = {2007}, abstract = {This paper summarizes several developments in string-derived (Minimal Supersymmetric) Standard Models. Part one reviews the first string model containing solely the three generations of the Minimal Supersymmetric Standard Model and a single pair of Higgs as the matter in the observable sector of the low energy effective field theory. This model was constructed by Cleaver, Faraggi, and Nanopoulos in the Z\_2 x Z\_2 free fermionic formulation of weak coupled heterotic strings. Part two examines a representative collection of string/brane-derived MSSMs that followed. These additional models were obtained from various construction methods, including weak coupled Z\_6 heterotic orbifolds, strong coupled heterotic on elliptically fibered Calabi-Yau's, Type IIB orientifolds with magnetic charged branes, and Type IIA orientifolds with intersecting branes (duals of the Type IIB). Phenomenology of the models is compared. To appear in String Theory Research Progress, Ferenc N. Balogh, editor., (ISBN 978-1-60456-075-6), Nova Science Publishers, Inc.\vphantom\{\}}, archivePrefix = {arXiv}, eprint = {hep-ph/0703027}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/cleaver_2007_in_search_of_the_(minimal_supersymmetric)_standard_model_string.pdf} } @article{Cole:2019:SearchingLandscapeFlux, title = {Searching the Landscape of Flux Vacua with Genetic Algorithms}, author = {Cole, Alex and Schachner, Andreas and Shiu, Gary}, date = {2019}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2019}, pages = {45}, issn = {1029-8479}, doi = {10/ghf4nw}, archivePrefix = {arXiv}, eprint = {1907.10072}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/cole_et_al_2019_searching_the_landscape_of_flux_vacua_with_genetic_algorithms2.pdf}, langid = {english}, number = {11} } @article{Constantin:2019:CountingStringTheory, title = {Counting String Theory Standard Models}, author = {Constantin, Andrei and He, Yang-Hui and Lukas, Andre}, date = {2019}, journaltitle = {Physics Letters B}, shortjournal = {Physics Letters B}, volume = {792}, pages = {258--262}, issn = {03702693}, doi = {10/ghf4nx}, archivePrefix = {arXiv}, eprint = {1810.00444}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/constantin_et_al_2019_counting_string_theory_standard_models2.pdf}, keywords = {archived}, langid = {english} } @article{Cornalba:2002:NewCosmologicalScenario, title = {A {{New Cosmological Scenario}} in {{String Theory}}}, author = {Cornalba, Lorenzo and Costa, Miguel S.}, date = {2002}, journaltitle = {Physical Review D}, shortjournal = {Phys. Rev. D}, volume = {66}, pages = {066001}, issn = {0556-2821, 1089-4918}, doi = {10/c4nfnn}, abstract = {We consider new cosmological solutions with a collapsing, an intermediate and an expanding phase. The boundary between the expanding (collapsing) phase and the intermediate phase is seen by comoving observers as a cosmological past (future) horizon. The solutions are naturally embedded in string and M-theory. In the particular case of a two-dimensional cosmology, space-time is flat with an identification under boost and translation transformations. We consider the corresponding string theory orbifold and calculate the modular invariant one-loop partition function. In this case there is a strong parallel with the BTZ black hole. The higher dimensional cosmologies have a time-like curvature singularity in the intermediate region. In some cases the string coupling can be made small throughout all of space-time but string corrections become important at the singularity. This happens where string winding modes become light which could resolve the singularity. The new proposed space-time casual structure could have implications for cosmology, independently of string theory.}, archivePrefix = {arXiv}, eprint = {hep-th/0203031}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/cornalba_costa_2002_a_new_cosmological_scenario_in_string_theory2.pdf;/home/riccardo/.local/share/zotero/storage/D7EJLIH7/0203031.html}, number = {6} } @article{Cornalba:2004:TimedependentOrbifoldsString, title = {Time-Dependent Orbifolds and String Cosmology}, author = {Cornalba, Lorenzo and Costa, Miguel S.}, date = {2004}, journaltitle = {Fortschritte der Physik}, volume = {52}, pages = {145--199}, issn = {00158208}, doi = {10/brv6jj}, abstract = {In these lectures, we review the physics of time-dependent orbifolds of string theory, with particular attention to orbifolds of three-dimensional Minkowski space. We discuss the propagation of free particles in the orbifold geometries, together with their interactions. We address the issue of stability of these string vacua and the difficulties in defining a consistent perturbation theory, pointing to possible solutions. In particular, it is shown that resumming part of the perturbative expansion gives finite amplitudes. Finally we discuss the duality of some orbifold models with the physics of orientifold planes, and we describe cosmological models based on the dynamics of these orientifolds.}, archivePrefix = {arXiv}, eprint = {hep-th/0310099}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/cornalba_costa_2004_time-dependent_orbifolds_and_string_cosmology.pdf}, number = {2-3} } @article{Cortes:1995:SupportvectorNetworks, title = {Support-Vector Networks}, author = {Cortes, Corinna and Vapnik, Vladimir}, date = {1995}, journaltitle = {Machine learning}, volume = {20}, pages = {273--297}, file = {/home/riccardo/.local/share/zotero/files/cortes_vapnik_1995_support-vector_networks.pdf}, number = {3} } @article{Craps:2002:StringPropagationPresence, title = {String {{Propagation}} in the {{Presence}} of {{Cosmological Singularities}}}, author = {Craps, Ben and Kutasov, David and Rajesh, Govindan}, date = {2002}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2002}, pages = {053--053}, issn = {1029-8479}, doi = {10/cjdtw7}, abstract = {We study string propagation in a spacetime with positive cosmological constant, which includes a circle whose radius approaches a finite value as |t|\textbackslash to\textbackslash infty, and goes to zero at t=0. Near this cosmological singularity, the spacetime looks like R\^\{1,1\}/Z. In string theory, this spacetime must be extended by including four additional regions, two of which are compact. The other two introduce new asymptotic regions, corresponding to early and late times, respectively. States of quantum fields in this spacetime are defined in the tensor product of the two Hilbert spaces corresponding to the early time asymptotic regions, and the S-matrix describes the evolution of such states to states in the tensor product of the two late time asymptotic regions. We show that string theory provides a unique continuation of wavefunctions past the cosmological singularities, and allows one to compute the S-matrix. The incoming vacuum evolves into an outgoing state with particles. We also discuss instabilities of asymptotically timelike linear dilaton spacetimes, and the question of holography in such spaces. Finally, we briefly comment on the relation of our results to recent discussions of de Sitter space.}, archivePrefix = {arXiv}, eprint = {hep-th/0205101}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/craps_et_al_2002_string_propagation_in_the_presence_of_cosmological_singularities.pdf}, number = {06} } @article{Craps:2006:BigBangModels, title = {Big {{Bang Models}} in {{String Theory}}}, author = {Craps, Ben}, date = {2006}, journaltitle = {Classical and Quantum Gravity}, shortjournal = {Class. Quantum Grav.}, volume = {23}, pages = {S849-S881}, issn = {0264-9381, 1361-6382}, doi = {10/cx8s3s}, abstract = {These proceedings are based on lectures delivered at the "RTN Winter School on Strings, Supergravity and Gauge Theories", CERN, January 16 - January 20, 2006. The school was mainly aimed at Ph.D. students and young postdocs. The lectures start with a brief introduction to spacetime singularities and the string theory resolution of certain static singularities. Then they discuss attempts to resolve cosmological singularities in string theory, mainly focusing on two specific examples: the Milne orbifold and the matrix big bang.}, archivePrefix = {arXiv}, eprint = {hep-th/0605199}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/craps_2006_big_bang_models_in_string_theory.pdf}, number = {21} } @article{Cremades:2003:YukawaCouplingsIntersecting, title = {Yukawa Couplings in Intersecting {{D}}-Brane Models}, author = {Cremades, Daniel and Ibanez, Luis E. and Marchesano, Fernando}, date = {2003}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2003}, pages = {038--038}, issn = {1029-8479}, doi = {10/bpp94m}, abstract = {We compute the Yukawa couplings among chiral fields in toroidal Type II compactifications with wrapping D6-branes intersecting at angles. Those models can yield realistic standard model spectrum living at the intersections. The Yukawa couplings depend both on the Kahler and open string moduli but not on the complex structure. They arise from worldsheet instanton corrections and are found to be given by products of complex Jacobi theta functions with characteristics. The Yukawa couplings for a particular intersecting brane configuration yielding the chiral spectrum of the MSSM are computed as an example. We also show how our methods can be extended to compute Yukawa couplings on certain classes of elliptically fibered CY manifolds which are mirror to complex cones over del Pezzo surfaces. We find that the Yukawa couplings in intersecting D6-brane models have a mathematical interpretation in the context of homological mirror symmetry. In particular, the computation of such Yukawa couplings is related to the construction of Fukaya's category in a generic symplectic manifold.}, archivePrefix = {arXiv}, eprint = {hep-th/0302105}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/cremades_et_al_2003_yukawa_couplings_in_intersecting_d-brane_models5.pdf}, number = {07} } @article{Cvetic:2010:BranesInstantonsIntersecting, title = {Branes and Instantons Intersecting at Angles}, author = {Cvetič, Mirjam and García-Etxebarria, Iñaki and Richter, Robert}, date = {2010}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2010}, pages = {5}, issn = {1029-8479}, doi = {10/dg2zz6}, abstract = {We study in detail the system of D6 branes and euclidean D2-brane instantons intersecting at angles in type IIA string theory. We find that in the absence of orientifolds the system does not contribute to the low energy superpotential, in agreement with expectations based on effective field theory arguments. We also comment on the implications of our results for dual string theory pictures.}, archivePrefix = {arXiv}, eprint = {0905.1694}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/cvetič_et_al_2010_branes_and_instantons_intersecting_at_angles.pdf}, number = {1} } @article{DAppollonio:2003:StringInteractionsGravitational, title = {String Interactions in Gravitational Wave Backgrounds}, author = {D'Appollonio, Giuseppe and Kiritsis, Elias}, date = {2003}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {674}, pages = {80--170}, issn = {05503213}, doi = {10/cwvfg9}, abstract = {The non-compact CFT of a class of NS-supported pp-wave backgrounds is solved exactly. The associated tree-level covariant string scattering amplitudes are calculated. The S-matrix elements are well-defined, dual but not analytic as a function of \$p\^+\$. They have poles corresponding to physical intermediate states with \$p\^+\textbackslash not =0\$ and logarithmic branch cuts due to on-shell exchange of spectral-flow images of \$p\^+=0\$ states. When \$\textbackslash mu\textbackslash to 0\$ a smooth flat space limit is obtained. The \$\textbackslash mu\textbackslash to\textbackslash infty\$ limit, unlike the case of RR-supported pp-waves, gives again a flat space theory.}, archivePrefix = {arXiv}, eprint = {hep-th/0305081}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/d'appollonio_kiritsis_2003_string_interactions_in_gravitational_wave_backgrounds5.pdf}, number = {1-2} } @article{David:2000:TachyonCondensationD0, title = {Tachyon Condensation in the {{D0}}/{{D4}} System}, author = {David, Justin R.}, date = {2000}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2000}, pages = {004--004}, issn = {1029-8479}, doi = {20050405175528}, abstract = {The D0/D4 system with a Neveu-Schwarz B-field in the spatial directions of the D4-brane has a tachyon in the spectrum of the (0,4) strings. The tachyon signals the instability of the system to form a bound state of the D0-brane with the D4-brane. We use the Wess-Zumino-Witten like open superstring field theory formulated by Berkovits to study the tachyon potential for this system. The tachyon potential lies outside the universality class of the D-brane anti-D-brane system. It is a function of the B-field. We calculate the tachyon potential at the zeroth level approximation. The minimum of the tachyon potential in this case is expected to reproduce the mass defect involved in the formation of the D0/D4 bound state. We compare the minimum of the tachyon potential with the mass defect in three cases. For small values of the B-field we obtain 70\% of the expected mass defect. For large values of the B-field with Pf\$(2\textbackslash pi\textbackslash alpha' B) {$>$}0\$ the potential reduces to that of the D-brane anti-D-brane reproducing 62\% of the expected mass defect. For large values of the B-field with Pf\$(2\textbackslash pi\textbackslash alpha' B) {$<$}0\$ the minimum of the tachyon potential gives 25\% of the expected mass defect. At the tachyon condensate we show that the (0,4) strings decouple from the low energy dynamics.}, archivePrefix = {arXiv}, eprint = {hep-th/0007235}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/david_2000_tachyon_condensation_in_the_d0-d4_system.pdf}, number = {10} } @article{David:2001:TachyonCondensationUsing, title = {Tachyon Condensation Using the Disc Partition Function}, author = {David, Justin R.}, date = {2001}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2001}, pages = {009--009}, issn = {1029-8479}, doi = {10/fb5m3w}, abstract = {It has been recently proposed that the background independent open superstring field theory action is given by the disc partition function with all possible open string operators inserted at the boundary of the disc. We use this proposal to study tachyon condensation in the D0-D2 system. We evaluate the disc partition function for the D0-D2 system in presence of a large Neveu-Schwarz B-field using perturbation theory. This perturbative expansion of the disc partition function makes sense as the boundary tachyon operator for the large Neveu-Schwarz B-field is almost marginal. We find that the mass defect for the formation of the D0-D2 bound state agrees exactly with the expected result in the large B-field limit.}, archivePrefix = {arXiv}, eprint = {hep-th/0012089}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/david_2001_tachyon_condensation_using_the_disc_partition_function5.pdf}, number = {07} } @article{Denef:2007:ComputationalComplexityLandscape, title = {Computational Complexity of the Landscape: {{Part I}}}, shorttitle = {Computational Complexity of the Landscape}, author = {Denef, Frederik and Douglas, Michael R.}, date = {2007}, journaltitle = {Annals of Physics}, shortjournal = {Annals of Physics}, volume = {322}, pages = {1096--1142}, issn = {00034916}, doi = {10/bp2wbs}, archivePrefix = {arXiv}, eprint = {hep-th/0602072}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/denef_douglas_2007_computational_complexity_of_the_landscape.pdf}, keywords = {archived}, langid = {english}, number = {5} } @article{DiBartolomeo:1990:GeneralPropertiesVertices, title = {General Properties of Vertices with Two {{Ramond}} or Twisted States}, author = {Di Bartolomeo, Nicola and Di Vecchia, Paolo and Guatieri, R.}, date = {1990}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {347}, pages = {651--686}, issn = {05503213}, doi = {10/ctk5bp}, file = {/home/riccardo/.local/share/zotero/files/di_bartolomeo_et_al_1990_general_properties_of_vertices_with_two_ramond_or_twisted_states4.pdf}, keywords = {archived}, langid = {english}, number = {3} } @book{DiFrancesco:1997:ConformalFieldTheory, title = {Conformal {{Field Theory}}}, author = {Di Francesco, Philippe and Mathieu, Pierre and Sénéchal, David}, date = {1997}, publisher = {{Springer}}, location = {{New York}}, url = {http://link.springer.com/10.1007/978-1-4612-2256-9}, file = {/home/riccardo/.local/share/zotero/files/di_francesco_et_al_1997_conformal_field_theory.pdf}, isbn = {978-1-4612-7475-9}, langid = {english}, series = {Graduate {{Texts}} in {{Contemporary Physics}}} } @article{Dijkstra:2005:ChiralSupersymmetricStandard, title = {Chiral Supersymmetric {{Standard Model}} Spectra from Orientifolds of {{Gepner}} Models}, author = {Dijkstra, T. P. T. and Huiszoon, Lennaert R. and Schellekens, A. N.}, date = {2005}, journaltitle = {Physics Letters B}, shortjournal = {Physics Letters B}, volume = {609}, pages = {408--417}, issn = {03702693}, doi = {10/frz278}, archivePrefix = {arXiv}, eprint = {hep-th/0403196}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/dijkstra_et_al_2005_chiral_supersymmetric_standard_model_spectra_from_orientifolds_of_gepner_models.pdf}, keywords = {archived}, langid = {english}, number = {3-4} } @article{DiVecchia:1990:VertexIncludingEmission, title = {A Vertex Including Emission of Spin Fields}, author = {Di Vecchia, Paolo and Madsen, R. and Hornfeck, Klaus and Roland, Kaj}, date = {1990}, journaltitle = {Physics Letters B}, shortjournal = {Physics Letters B}, volume = {235}, pages = {63--70}, issn = {03702693}, doi = {10/fr3zhk}, file = {/home/riccardo/.local/share/zotero/files/di_vecchia_et_al_1990_a_vertex_including_emission_of_spin_fields4.pdf}, keywords = {archived}, langid = {english}, number = {1-2} } @article{DiVecchia:1997:ClassicalPbranesBoundary, title = {Classical P-Branes from Boundary State}, author = {Di Vecchia, Paolo and Frau, Marialuisa and Pesando, Igor and Sciuto, Stefano and Lerda, Alberto and Russo, Rodolfo}, date = {1997}, journaltitle = {Nuclear Physics B}, volume = {507}, pages = {259--276}, issn = {05503213}, doi = {10/bjkrq3}, abstract = {We show that the boundary state description of a Dp-brane is strictly related to the corresponding classical solution of the low-energy string effective action. By projecting the boundary state on the massless states of the closed string we obtain the tension, the R-R charge and the large distance behavior of the classical solution. We discuss both the case of a single D-brane and that of bound states of two D-branes. We also show that in the R-R sector the boundary state, written in a picture which treats asymmetrically the left and right components, directly yields the R-R gauge potentials.}, archivePrefix = {arXiv}, eprint = {hep-th/9707068}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/di_vecchia_et_al_1997_classical_p-branes_from_boundary_state.pdf}, number = {1-2} } @inproceedings{DiVecchia:1999:DbranesStringTheory, title = {D-Branes in String Theory {{II}}}, booktitle = {{{YITP}} Workshop on Developments in Superstring and {{M}}-Theory}, author = {Di Vecchia, Paolo and Liccardo, Antonella}, date = {1999}, pages = {7--48}, archivePrefix = {arXiv}, eprint = {hep-th/9912275}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/di_vecchia_liccardo_1999_d-branes_in_string_theory.pdf} } @article{DiVecchia:2000:BranesStringTheory, title = {D Branes in String Theory {{I}}}, author = {Di Vecchia, Paolo and Liccardo, Antonella}, editor = {Thorlacius, Lárus and Jonsson, Thordur}, date = {2000}, journaltitle = {NATO Sci. Ser. C}, volume = {556}, pages = {1--60}, doi = {10/gf66cb}, archivePrefix = {arXiv}, eprint = {hep-th/9912161}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/di_vecchia_liccardo_2000_d_branes_in_string_theory,_i.pdf}, number = {NORDITA-1999-77-HE} } @inproceedings{DiVecchia:2006:BoundaryStateMagnetized, title = {Boundary {{State}} for {{Magnetized D9 Branes}} and {{One}}-{{Loop Calculation}}}, booktitle = {Proceedings of {{Sense}} of {{Beauty}} in {{Physics}}: {{Miniconference}} in {{Honor}} of {{Adriano Di Giacomo}} on His 70th {{Birthday}}}, author = {Di Vecchia, Paolo and Liccardo, Antonella and Marotta, Raffaele and Pezzella, Franco and Pesando, Igor}, date = {2006}, abstract = {We construct the boundary state describing magnetized D9 branes in R\^\{3,1\} x T\^6 and we use it to compute the annulus and Moebius amplitudes. We derive from them, by using open/closed string duality, the number of Landau levels on the torus T\^d.}, archivePrefix = {arXiv}, eprint = {hep-th/0601067}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/di_vecchia_et_al_2006_boundary_state_for_magnetized_d9_branes_and_one-loop_calculation.pdf} } @article{DiVecchia:2007:WrappedMagnetizedBranes, title = {Wrapped Magnetized Branes: Two Alternative Descriptions?}, author = {Di Vecchia, Paolo and Liccardo, Antonella and Marotta, Raffaele and Pezzella, Franco and Pesando, Igor}, date = {2007}, journaltitle = {Journal of High Energy Physics}, volume = {2007}, pages = {100--100}, issn = {1029-8479}, doi = {10/c7xmmn}, abstract = {We discuss two inequivalent ways for describing magnetized D-branes wrapped N times on a torus T\^2. The first one is based on a non-abelian gauge bundle U(N), while the second one is obtained by means of a Narain T-duality transformation acting on a theory with non-magnetized branes. We construct in both descriptions the boundary state and the open string vertices and show that they give rise to different string amplitudes. In particular, the description based on the gauge bundle has open string vertex operators with momentum dependent Chan-Paton factors.}, archivePrefix = {arXiv}, eprint = {0709.4149}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/di_vecchia_et_al_2007_wrapped_magnetized_branes.pdf}, number = {11} } @article{DiVecchia:2011:OpenStringsSystem, title = {Open Strings in the System {{D5}}/{{D9}}}, author = {Di Vecchia, Paolo and Marotta, Raffaele and Pesando, Igor and Pezzella, Franco}, date = {2011}, journaltitle = {Journal of Physics A: Mathematical and Theoretical}, shortjournal = {J. Phys. A: Math. Theor.}, volume = {44}, pages = {245401}, issn = {1751-8113, 1751-8121}, doi = {10/brf7sk}, abstract = {We construct the six-dimensional Lagrangian for the massless twisted open strings with one end-point ending on a stack of D5 and the other on a stack of D9 branes, interacting with the gauge multiplets living respectively on the D5 and D9 branes. It is first obtained by uplifting to six dimensions the four-dimensional Lagrangian of the N=2 hypermultiplet and manifestly exhibits an SU(2) symmetry. We show by an explicit calculation that it is N=1 supersymmetric in six dimensions and then we check various terms of this Lagrangian by computing string amplitudes on the disk. Finally, starting from this Lagrangian and assuming the presence of non-zero magnetic fluxes along the extra compact dimensions, we determine the spectrum of the Kaluza-Klein states which agrees with the corresponding one obtained from string theory in the field theory limit.}, archivePrefix = {arXiv}, eprint = {1101.0120}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/di_vecchia_et_al_2011_open_strings_in_the_system_d5-d5.pdf}, number = {24} } @article{Dixon:1985:StringsOrbifolds, title = {Strings on Orbifolds}, author = {Dixon, Lance J. and Harvey, Jeffrey A. and Vafa, Cumrun and Witten, Edward}, date = {1985}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {261}, pages = {678--686}, issn = {05503213}, doi = {10/fnwxts}, keywords = {archived}, langid = {english} } @article{Dixon:1986:StringsOrbifoldsII, title = {Strings on Orbifolds ({{II}})}, author = {Dixon, Lance J. and Harvey, Jeffrey A. and Vafa, Cumrun and Witten, Edward}, date = {1986}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {274}, pages = {285--314}, issn = {05503213}, doi = {10/bv9nwg}, keywords = {archived}, langid = {english}, number = {2} } @article{Douglas:2003:StatisticsStringTheory, title = {The Statistics of String/{{M}} Theory Vacua}, author = {Douglas, Michael R.}, date = {2003}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2003}, pages = {046--046}, issn = {1029-8479}, doi = {10/fktbj2}, abstract = {We discuss systematic approaches to the classification of string/M theory vacua, and physical questions this might help us resolve. To this end, we initiate the study of ensembles of effective Lagrangians, which can be used to precisely study the predictive power of string theory, and in simple examples can lead to universality results. Using these ideas, we outline an approach to estimating the number of vacua of string/M theory which can realize the Standard Model.}, archivePrefix = {arXiv}, eprint = {hep-th/0303194}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/douglas_2003_the_statistics_of_string-m_theory_vacua2.pdf;/home/riccardo/.local/share/zotero/storage/RYERQ24Z/0303194.html}, number = {05} } @article{Douglas:2007:LandscapeIntersectingBrane, title = {The Landscape of Intersecting Brane Models}, author = {Douglas, Michael R. and Taylor, Washington}, date = {2007}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2007}, pages = {031--031}, issn = {1029-8479}, doi = {10/dm8rxf}, archivePrefix = {arXiv}, eprint = {hep-th/0606109}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/douglas_taylor_2007_the_landscape_of_intersecting_brane_models.pdf}, keywords = {archived}, number = {01} } @inproceedings{Drucker:1997:SupportVectorRegression, title = {Support Vector Regression Machines}, booktitle = {Advances in Neural Information Processing Systems}, author = {Drucker, Harris and Burges, Christopher JC and Kaufman, Linda and Smola, Alex J and Vapnik, Vladimir}, date = {1997}, pages = {155--161}, file = {/home/riccardo/.local/share/zotero/files/drucker_et_al_1996_support_vector_regression_machines.pdf} } @article{Duo:2007:NewTwistField, title = {New Twist Field Couplings from the Partition Function for Multiply Wrapped {{D}}-Branes}, author = {Duo, Dario and Russo, Rodolfo and Sciuto, Stefano}, date = {2007}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2007}, pages = {042--042}, issn = {1029-8479}, doi = {10/dptb7d}, abstract = {We consider toroidal compactifications of bosonic string theory with particular regard to the phases (cocycles) necessary for a consistent definition of the vertex operators, the boundary states and the T-duality rules. We use these ingredients to compute the planar multi-loop partition function describing the interaction among magnetized or intersecting D-branes, also in presence of open string moduli. It turns out that unitarity in the open string channel crucially depends on the presence of the cocycles. We then focus on the 2-loop case and study the degeneration limit where this partition function is directly related to the tree-level 3-point correlators between twist fields. These correlators represent the main ingredient in the computation of Yukawa couplings and other terms in the effective action for D-brane phenomenological models. By factorizing the 2-loop partition function we are able to compute the 3-point couplings for abelian twist fields on generic non-factorized tori, thus generalizing previous expressions valid for the 2-torus.}, archivePrefix = {arXiv}, eprint = {0709.1805}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/duo_et_al_2007_new_twist_field_couplings_from_the_partition_function_for_multiply_wrapped5.pdf}, number = {12} } @online{Erbin:2020:InceptionNeuralNetwork, title = {Inception {{Neural Network}} for {{Complete Intersection Calabi}}-{{Yau}} 3-Folds}, author = {Erbin, Harold and Finotello, Riccardo}, date = {2020}, abstract = {We introduce a neural network inspired by Google's Inception model to compute the Hodge number \$h\^\{1,1\}\$ of complete intersection Calabi-Yau (CICY) 3-folds. This architecture improves largely the accuracy of the predictions over existing results, giving already 97\% of accuracy with just 30\% of the data for training. Moreover, accuracy climbs to 99\% when using 80\% of the data for training. This proves that neural networks are a valuable resource to study geometric aspects in both pure mathematics and string theory.}, archivePrefix = {arXiv}, eprint = {2007.13379}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/erbin_finotello_2020_inception_neural_network_for_complete_intersection_calabi-yau_3-folds.pdf} } @online{Erbin:2020:MachineLearningComplete, title = {Machine Learning for Complete Intersection {{Calabi}}-{{Yau}} Manifolds: A Methodological Study}, shorttitle = {Machine Learning for Complete Intersection {{Calabi}}-{{Yau}} Manifolds}, author = {Erbin, Harold and Finotello, Riccardo}, date = {2020}, abstract = {We revisit the question of predicting both Hodge numbers \$h\^\{1,1\}\$ and \$h\^\{2,1\}\$ of complete intersection Calabi-Yau (CICY) 3-folds using machine learning (ML), considering both the old and new datasets built respectively by Candelas-Dale-Lutken-Schimmrigk / Green-H\textbackslash "ubsch-Lutken and by Anderson-Gao-Gray-Lee. In real world applications, implementing a ML system rarely reduces to feed the brute data to the algorithm. Instead, the typical workflow starts with an exploratory data analysis (EDA) which aims at understanding better the input data and finding an optimal representation. It is followed by the design of a validation procedure and a baseline model. Finally, several ML models are compared and combined, often involving neural networks with a topology more complicated than the sequential models typically used in physics. By following this procedure, we improve the accuracy of ML computations for Hodge numbers with respect to the existing literature. First, we obtain 97\% (resp. 99\%) accuracy for \$h\^\{1,1\}\$ using a neural network inspired by the Inception model for the old dataset, using only 30\% (resp. 70\%) of the data for training. For the new one, a simple linear regression leads to almost 100\% accuracy with 30\% of the data for training. The computation of \$h\^\{2,1\}\$ is less successful as we manage to reach only 50\% accuracy for both datasets, but this is still better than the 16\% obtained with a simple neural network (SVM with Gaussian kernel and feature engineering and sequential convolutional network reach at best 36\%). This serves as a proof of concept that neural networks can be valuable to study the properties of geometries appearing in string theory.}, archivePrefix = {arXiv}, eprint = {2007.15706}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/erbin_finotello_2020_machine_learning_for_complete_intersection_calabi-yau_manifolds.pdf} } @article{Faraggi:2020:MachineLearningClassification, title = {Towards Machine Learning in the Classification of {{Z}}{\textsubscript{2}} × {{Z}}{\textsubscript{2}} Orbifold Compactifications}, author = {Faraggi, A E and Harries, G and Percival, B and Rizos, J}, date = {2020}, journaltitle = {Journal of Physics: Conference Series}, shortjournal = {J. Phys.: Conf. Ser.}, volume = {1586}, pages = {012032}, issn = {1742-6588, 1742-6596}, doi = {10/ghf4nz}, archivePrefix = {arXiv}, eprint = {1901.04448}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/faraggi_et_al_2020_towards_machine_learning_in_the_classification_of_iz-i_sub2-sub_×.pdf}, keywords = {archived} } @inproceedings{Fawcett:2001:UsingRuleSets, title = {Using Rule Sets to Maximize {{ROC}} Performance}, booktitle = {Proceedings 2001 {{IEEE}} International Conference on Data Mining}, author = {Fawcett, Tom}, date = {2001}, pages = {131--138}, doi = {10/d7q2hk}, file = {/home/riccardo/.local/share/zotero/files/fawcett_2001_using_rule_sets_to_maximize_roc_performance2.pdf} } @article{Fernandez-Delgado:2014:WeNeedHundreds, title = {Do We {{Need Hundreds}} of {{Classifiers}} to {{Solve Real World Classification Problems}}?}, author = {Fernández-Delgado, Manuel and Cernadas, Eva and Barro, Senén and Amorim, Dinani}, date = {2014}, journaltitle = {Journal of Machine Learning Research}, volume = {15}, pages = {3133--3181}, url = {http://jmlr.org/papers/v15/delgado14a.html}, abstract = {We evaluate 179 classifiers arising from 17 families (discriminant analysis, Bayesian, neural networks, support vector machines, decision trees, rule-based classifiers, boosting, bagging, stacking, random forests and other ensembles, generalized linear models, nearest-neighbors, partial least squares and principal component regression, logistic and multinomial regression, multiple adaptive regression splines and other methods), implemented in Weka, R (with and without the caret package), C and Matlab, including all the relevant classifiers available today. We use 121 data sets, which represent the whole UCI data base (excluding the large- scale problems) and other own real problems, in order to achieve significant conclusions about the classifier behavior, not dependent on the data set collection. The classifiers most likely to be the bests are the random forest (RF) versions, the best of which (implemented in R and accessed via caret) achieves 94.1\% of the maximum accuracy overcoming 90\% in the 84.3\% of the data sets. However, the difference is not statistically significant with the second best, the SVM with Gaussian kernel implemented in C using LibSVM, which achieves 92.3\% of the maximum accuracy. A few models are clearly better than the remaining ones: random forest, SVM with Gaussian and polynomial kernels, extreme learning machine with Gaussian kernel, C5.0 and avNNet (a committee of multi-layer perceptrons implemented in R with the caret package). The random forest is clearly the best family of classifiers (3 out of 5 bests classifiers are RF), followed by SVM (4 classifiers in the top-10), neural networks and boosting ensembles (5 and 3 members in the top-20, respectively).}, file = {/home/riccardo/.local/share/zotero/files/fernández-delgado_et_al_2014_do_we_need_hundreds_of_classifiers_to_solve_real_world_classification_problems.pdf}, number = {90} } @article{Figueroa-OFarrill:2001:GeneralisedSupersymmetricFluxbranes, title = {Generalised Supersymmetric Fluxbranes}, author = {Figueroa-O'Farrill, José and Simón, Joan}, date = {2001}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2001}, pages = {011--011}, issn = {1029-8479}, doi = {10/c2bshm}, abstract = {We classify generalised supersymmetric fluxbranes in type II string theory obtained as Kaluza-Klein reductions of the Minkowski space vacuum of eleven-dimensional supergravity. We obtain two families of smooth solutions which contains all the known solutions, new solutions called nullbranes, and solutions interpolating between them. We explicitly construct all the solutions and we study the U-duality orbits of some of these backgrounds.}, archivePrefix = {arXiv}, eprint = {hep-th/0110170}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/figueroa-o'farrill_simón_2001_generalised_supersymmetric_fluxbranes.pdf;/home/riccardo/.local/share/zotero/storage/JTHMFQBY/0110170.html}, number = {12} } @online{Finotello:2019:2DFermionStrip, title = {{{2D Fermion}} on the {{Strip}} with {{Boundary Defects}} as a {{CFT}} with {{Excited Spin Fields}}}, author = {Finotello, Riccardo and Pesando, Igor}, date = {2019}, abstract = {We consider a two-dimensional fermion on the strip in the presence of an arbitrary number of zero-dimensional boundary changing defects. We show that the theory is still conformal with time dependent stress-energy tensor and that the allowed defects can be understood as excited spin fields. Finally we compute correlation functions involving these excited spin fields without using bosonization.}, archivePrefix = {arXiv}, eprint = {1912.07617}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/finotello_pesando_2019_2d_fermion_on_the_strip_with_boundary_defects_as_a_cft_with_excited_spin_fields.pdf} } @article{Finotello:2019:ClassicalSolutionBosonic, title = {The {{Classical Solution}} for the {{Bosonic String}} in the {{Presence}} of {{Three D}}-Branes {{Rotated}} by {{Arbitrary SO}}(4) {{Elements}}}, author = {Finotello, Riccardo and Pesando, Igor}, date = {2019}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {941}, pages = {158--194}, issn = {05503213}, doi = {10/gf66b3}, abstract = {We consider the classical instantonic contribution to the open string configuration associated with three D-branes with relative rotation matrices in SO(4) which corresponds to the computation of the classical part of the correlator of three non Abelian twist fields. We write the classical solution as a sum of a product of two hypergeometric functions. Differently from all the previous cases with three D-branes, the solution is not holomorphic and suggests that the classical bosonic string knows when the configuration may be supersymmetric. We show how this configuration reduces to the standard Abelian twist field computation. From the phenomenological point of view, the Yukawa couplings between chiral matter at the intersection in this configuration are more suppressed with respect to the factorized case in the literature.}, archivePrefix = {arXiv}, eprint = {1812.04643}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/finotello_pesando_2019_the_classical_solution_for_the_bosonic_string_in_the_presence_of_three_d-branes.pdf;/home/riccardo/.local/share/zotero/files/finotello_pesando_2019_the_classical_solution_for_the_bosonic_string_in_the_presence_of_three_d-branes2.pdf} } @article{Forste:2018:YukawaCouplingsMagnetized, title = {Yukawa Couplings from Magnetized {{D}}-Brane Models on Non-Factorisable Tori}, author = {Forste, Stefan and Liyanage, Christoph}, date = {2018}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2018}, pages = {169}, issn = {1029-8479}, doi = {10/gf66b4}, abstract = {We compute Yukawa couplings in type IIB string theory compactified on a non factorisable six-torus in the presence of D9 branes and fluxes. The setting studied in detail, is obtained by T-dualising an intersecting brane configuration of type IIA theory compactified on a torus generated by the SO(12) root lattice. Particular deformations of such torus are taken into account and provide moduli dependent couplings. Agreement with the type IIA result is found in a non trivial way. The classical type IIB calculation gives also information on a factor accessible only by quantum computations on the type IIA side.}, archivePrefix = {arXiv}, eprint = {1802.05136}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/forste_liyanage_2018_yukawa_couplings_from_magnetized_d-brane_models_on_non-factorisable_tori.pdf}, number = {8} } @article{Friedan:1986:ConformalInvarianceSupersymmetry, title = {Conformal Invariance, Supersymmetry and String Theory}, author = {Friedan, Daniel and Martinec, Emil and Shenker, Stephen}, date = {1986}, journaltitle = {Nuclear Physics B}, volume = {271}, pages = {93--165}, issn = {05503213}, doi = {10/fq6qtz}, abstract = {Covariant quantization of string theories is developed in the context of conformal field theory and the BRST quantization procedure. The BRST method is used to covariantly quantize superstrings, and in particular to construct the vertex operators for string emission as well as the supersymmetry charge. The calculation of string loop diagrams is sketched. We discuss how conformal methods can be used to study string compactification and dynamics. © 1986, Elsevier Science Publishers B.V. (North-Holland Physics Publishing Division). All rights reserved. All rights reserved.}, file = {/home/riccardo/.local/share/zotero/files/friedan_et_al_1986_conformal_invariance,_supersymmetry_and_string_theory.pdf}, number = {3-4} } @article{Friedman:2001:GreedyFunctionApproximation, title = {Greedy {{Function Approximation}}: {{A Gradient Boosting Machine}}}, shorttitle = {Greedy {{Function Approximation}}}, author = {Friedman, Jerome H.}, date = {2001}, journaltitle = {The Annals of Statistics}, volume = {29}, pages = {1189--1232}, issn = {0090-5364}, doi = {10/fbgj35}, abstract = {Function estimation/approximation is viewed from the perspective of numerical optimization in function space, rather than parameter space. A connection is made between stagewise additive expansions and steepest-descent minimization. A general gradient descent "boosting" paradigm is developed for additive expansions based on any fitting criterion. Specific algorithms are presented for least-squares, least absolute deviation, and Huber-M loss functions for regression, and multiclass logistic likelihood for classification. Special enhancements are derived for the particular case where the individual additive components are regression trees, and tools for interpreting such "TreeBoost" models are presented. Gradient boosting of regression trees produces competitive, highly robust, interpretable procedures for both regression and classification, especially appropriate for mining less than clean data. Connections between this approach and the boosting methods of Freund and Shapire and Friedman, Hastie and Tibshirani are discussed.}, eprint = {2699986}, eprinttype = {jstor}, file = {/home/riccardo/.local/share/zotero/files/friedman_2001_greedy_function_approximation.pdf}, number = {5} } @article{Friedman:2002:StochasticGradientBoosting, title = {Stochastic Gradient Boosting}, author = {Friedman, Jerome H.}, date = {2002}, journaltitle = {Computational Statistics \& Data Analysis}, volume = {38}, pages = {367--378}, issn = {0167-9473}, doi = {10/fxb956}, file = {/home/riccardo/.local/share/zotero/files/friedman_2002_stochastic_gradient_boosting.pdf;/home/riccardo/.local/share/zotero/storage/RTS7DDDJ/S0167947301000652.html}, number = {4} } @article{Gato:1990:VertexOperatorsNonAbelian, title = {Vertex Operators, Non-{{Abelian}} Orbifolds and the {{Reimann}}--{{Hilbert}} Problem}, author = {Gato, Beatriz}, date = {1990}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {334}, pages = {414--430}, issn = {05503213}, doi = {10/chx7rp}, file = {/home/riccardo/.local/share/zotero/files/gato_1990_vertex_operators,_non-abelian_orbifolds_and_the_reimann-hilbert_problem.pdf}, keywords = {archived}, langid = {english}, number = {2} } @article{Gava:1997:BoundStatesBranes, title = {On the {{Bound States}} of P- and (P+2)-{{Branes}}}, author = {Gava, Edi and Narain, Kumar S. and Sarmadi, Hossein M.}, date = {1997}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {504}, pages = {214--238}, issn = {05503213}, doi = {10/djsprb}, abstract = {We study bound states of D-p-branes and D-(p+2)-branes. By switching on a large magnetic field F on the (p+2) brane, the problem is shown to admit a perturbative analysis in an expansion in inverse powers of F. It is found that, to the leading order in 1/F, the quartic potential of the tachyonic state from the open string stretched between the p- and (p+2)-brane gives a vacuum energy which agrees with the prediction of the BPS mass formula for the bound state. We generalize the discussion to the case of m p-branes plus 1 (p+2)-brane with magnetic field. The T dual picture of this, namely several (p+2)-branes carrying some p-brane charges through magnetic flux is also discussed, where the perturbative treatment is available in the small F limit. We show that once again, in the same approximation, the tachyon condensates give rise to the correct BPS mass formula. The role of 't Hooft's toron configurations in the extension of the above results beyond the quartic approximation as well as the issue of the unbroken gauge symmetries are discussed. We comment on the connection between the present bound state problem and Kondo-like problems in the context of relevant boundary perturbations of boundary conformal field theories.}, archivePrefix = {arXiv}, eprint = {hep-th/9704006}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/gava_et_al_1997_on_the_bound_states_of_p-_and_(p+2)-branes.pdf}, number = {1-2} } @book{Geron:2019:HandsOnMachineLearning, title = {Hands-{{On Machine Learning}} with {{Scikit}}-{{Learn}}, {{Keras}}, and {{TensorFlow}}}, author = {Géron, Aurélien}, date = {2019}, url = {http://shop.oreilly.com/product/0636920142874.do}, abstract = {Through a series of recent breakthroughs, deep learning has boosted the entire field of machine learning. Now, even programmers who know close to nothing about this technology can use simple, efficie...}, file = {/home/riccardo/.local/share/zotero/files/géron_2019_hands-on_machine_learning_with_scikit-learn,_keras,_and_tensorflow.pdf}, isbn = {978-1-4920-3264-9}, langid = {english} } @inproceedings{Glorot:2011:DeepSparseRectifier, title = {Deep Sparse Rectifier Neural Networks}, booktitle = {Proceedings of the Fourteenth International Conference on Artificial Intelligence and Statistics}, author = {Glorot, Xavier and Bordes, Antoine and Bengio, Yoshua}, date = {2011}, pages = {315--323}, file = {/home/riccardo/.local/share/zotero/files/glorot_et_al_2011_deep_sparse_rectifier_neural_networks.pdf} } @article{Goddard:1973:QuantumDynamicsMassless, title = {Quantum Dynamics of a Massless Relativistic String}, author = {Goddard, Peter and Goldstone, Jeffrey and Rebbi, Claudio and Thorn, Charles B.}, date = {1973}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {56}, pages = {109--135}, issn = {05503213}, doi = {10/ccmwgf}, file = {/home/riccardo/.local/share/zotero/files/goddard_et_al_1973_quantum_dynamics_of_a_massless_relativistic_string.pdf}, keywords = {archived}, langid = {english}, number = {1} } @incollection{Goodfellow:2014:GenerativeAdversarialNets, title = {Generative Adversarial Nets}, booktitle = {Advances in Neural Information Processing Systems 27}, author = {Goodfellow, Ian and Pouget-Abadie, Jean and Mirza, Mehdi and Xu, Bing and Warde-Farley, David and Ozair, Sherjil and Courville, Aaron and Bengio, Yoshua}, editor = {Ghahramani, Z. and Welling, M. and Cortes, C. and Lawrence, N. D. and Weinberger, K. Q.}, date = {2014}, pages = {2672--2680}, publisher = {{Curran Associates, Inc.}}, url = {http://papers.nips.cc/paper/5423-generative-adversarial-nets.pdf}, file = {/home/riccardo/.local/share/zotero/files/goodfellow_et_al_2014_generative_adversarial_nets.pdf} } @book{Goodfellow:2017:DeepLearning, title = {Deep Learning}, author = {Goodfellow, Ian and Yousha, Bengio and Courville, Aaron}, date = {2017}, volume = {1}, publisher = {{MIT press}}, url = {https://www.deeplearningbook.org/}, file = {/home/riccardo/.local/share/zotero/files/bengio_et_al_2017_deep_learning.pdf}, isbn = {978-0-262-33737-3} } @inproceedings{Gori:2005:NewModelLearning, title = {A New Model for Learning in Graph Domains}, booktitle = {Proceedings. 2005 {{IEEE}} International Joint Conference on Neural Networks, 2005.}, author = {Gori, Marco and Monfardini, Gabriele and Scarselli, Franco}, date = {2005}, volume = {2}, pages = {729--734}, doi = {10/cr2f33}, file = {/home/riccardo/.local/share/zotero/files/gori_et_al_2005_a_new_model_for_learning_in_graph_domains2.pdf} } @article{Grana:2006:FluxCompactificationsString, title = {Flux Compactifications in String Theory: {{A}} Comprehensive Review}, shorttitle = {Flux Compactifications in String Theory}, author = {Graña, Mariana}, date = {2006}, journaltitle = {Physics Reports}, shortjournal = {Physics Reports}, volume = {423}, pages = {91--158}, issn = {03701573}, doi = {10/bdzzsc}, archivePrefix = {arXiv}, eprint = {hep-th/0509003}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/graña_2005_flux_compactifications_in_string_theory.pdf;/home/riccardo/.local/share/zotero/files/graña_2006_flux_compactifications_in_string_theory2.pdf}, keywords = {archived}, langid = {english}, number = {3} } @book{Grana:2017:StringTheoryCompactifications, title = {String {{Theory Compactifications}}}, author = {Graña, Mariana and Triendl, Hagen}, date = {2017}, publisher = {{Springer}}, location = {{Cham}}, url = {http://link.springer.com/10.1007/978-3-319-54316-1}, file = {/home/riccardo/.local/share/zotero/files/graña_triendl_2017_string_theory_compactifications.pdf}, isbn = {978-3-319-54315-4}, langid = {english}, series = {{{SpringerBriefs}} in {{Physics}}} } @article{Gray:2013:AllCompleteIntersection, title = {All {{Complete Intersection Calabi}}-{{Yau Four}}-{{Folds}}}, author = {Gray, James and Haupt, Alexander S. and Lukas, Andre}, date = {2013}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2013}, pages = {70}, issn = {1029-8479}, doi = {10/ghf4n2}, abstract = {We present an exhaustive, constructive, classification of the Calabi-Yau four-folds which can be described as complete intersections in products of projective spaces. A comprehensive list of 921,497 configuration matrices which represent all topologically distinct types of complete intersection Calabi-Yau four-folds is provided and can be downloaded at http://www-thphys.physics.ox.ac.uk/projects/CalabiYau/Cicy4folds/index.html . The manifolds have non-negative Euler characteristics in the range 0 - 2610. This data set will be of use in a wide range of physical and mathematical applications. Nearly all of these four-folds are elliptically fibered and are thus of interest for F-theory model building.}, archivePrefix = {arXiv}, eprint = {1303.1832}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/gray_et_al_2013_all_complete_intersection_calabi-yau_four-folds2.pdf;/home/riccardo/.local/share/zotero/storage/B4K3HHPX/1303.html}, number = {7} } @article{Gray:2014:TopologicalInvariantsFibration, title = {Topological {{Invariants}} and {{Fibration Structure}} of {{Complete Intersection Calabi}}-{{Yau Four}}-{{Folds}}}, author = {Gray, James and Haupt, Alexander S. and Lukas, Andre}, date = {2014}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2014}, pages = {93}, issn = {1029-8479}, doi = {10/ghf4n3}, abstract = {We investigate the mathematical properties of the class of Calabi-Yau four-folds recently found in [arXiv:1303.1832]. This class consists of 921,497 configuration matrices which correspond to manifolds that are described as complete intersections in products of projective spaces. For each manifold in the list, we compute the full Hodge diamond as well as additional topological invariants such as Chern classes and intersection numbers. Using this data, we conclude that there are at least 36,779 topologically distinct manifolds in our list. We also study the fibration structure of these manifolds and find that 99.95 percent can be described as elliptic fibrations. In total, we find 50,114,908 elliptic fibrations, demonstrating the multitude of ways in which many manifolds are fibered. A sub-class of 26,088,498 fibrations satisfy necessary conditions for admitting sections. The complete data set can be downloaded at http://www-thphys.physics.ox.ac.uk/projects/CalabiYau/Cicy4folds/index.html .}, archivePrefix = {arXiv}, eprint = {1405.2073}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/gray_et_al_2014_topological_invariants_and_fibration_structure_of_complete_intersection2.pdf;/home/riccardo/.local/share/zotero/storage/GWDFUFYW/1405.html}, number = {9} } @article{Green:1987:CalabiYauManifoldsComplete, title = {Calabi-{{Yau}} Manifolds as Complete Intersections in Products of Complex Projective Spaces}, author = {Green, Paul and Hübsch, Tristan}, date = {1987}, journaltitle = {Communications in Mathematical Physics}, shortjournal = {Commun.Math. Phys.}, volume = {109}, pages = {99--108}, issn = {0010-3616, 1432-0916}, doi = {10/bb29bx}, langid = {english}, number = {1} } @article{Green:1987:PolynomialDeformationsCohomology, title = {Polynomial Deformations and Cohomology of {{Calabi}}-{{Yau}} Manifolds}, author = {Green, Paul and Hübsch, Tristan}, date = {1987}, journaltitle = {Communications in Mathematical Physics}, shortjournal = {Commun.Math. Phys.}, volume = {113}, pages = {505--528}, issn = {0010-3616, 1432-0916}, doi = {10/fjxkft}, langid = {english}, number = {3} } @book{Green:1988:SuperstringTheoryIntroduction, title = {Superstring {{Theory}}. {{Introduction}}.}, author = {Green, Michael B. and Schwarz, John H. and Witten, Edward}, date = {1988}, volume = {1}, file = {/home/riccardo/.local/share/zotero/files/green_et_al_1988_superstring_theory.pdf}, isbn = {978-0-521-35752-4}, series = {Cambridge Monographs on Mathematical Physics} } @book{Green:1988:SuperstringTheoryLoop, title = {Superstring {{Theory}}. {{Loop Amplitudes}}, {{Anomalies}} and {{Phenomenology}}.}, author = {Green, Michael B. and Schwarz, John H. and Witten, Edward}, date = {1988}, volume = {2}, file = {/home/riccardo/.local/share/zotero/files/green_et_al_1988_superstring_theory2.pdf}, isbn = {978-0-521-35753-1}, series = {Cambridge Monographs on Mathematical Physics} } @article{Green:1989:AllHodgeNumbers, title = {All the {{Hodge}} Numbers for All {{Calabi}}-{{Yau}} Complete Intersections}, author = {Green, Paul S. and Hübsch, Tristan and Lütken, Carsten Andrew}, date = {1989}, journaltitle = {Classical and Quantum Gravity}, shortjournal = {Class. Quantum Grav.}, volume = {6}, pages = {105--124}, issn = {0264-9381, 1361-6382}, doi = {10/c6d47n}, file = {/home/riccardo/.local/share/zotero/files/green_et_al_1989_all_the_hodge_numbers_for_all_calabi-yau_complete_intersections3.pdf}, keywords = {archived}, number = {2} } @online{Greene:1997:StringTheoryCalabiYau, title = {String {{Theory}} on {{Calabi}}-{{Yau Manifolds}}}, author = {Greene, Brian}, date = {1997}, abstract = {These lectures are devoted to introducing some of the basic features of quantum geometry that have been emerging from compactified string theory over the last couple of years. The developments discussed include new geometric features of string theory which occur even at the classical level as well as those which require non-perturbative effects. These lecture notes are based on an evolving set of lectures presented at a number of schools but most closely follow a series of seven lectures given at the TASI-96 summer school on Strings, Fields and Duality.}, archivePrefix = {arXiv}, eprint = {hep-th/9702155}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/greene_1997_string_theory_on_calabi-yau_manifolds.pdf} } @article{Halverson:2019:BranesBrainsExploring, title = {Branes with Brains: Exploring String Vacua with Deep Reinforcement Learning}, shorttitle = {Branes with Brains}, author = {Halverson, James and Nelson, Brent and Ruehle, Fabian}, date = {2019}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2019}, pages = {3}, issn = {1029-8479}, doi = {10/gg66j8}, archivePrefix = {arXiv}, eprint = {1903.11616}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/halverson_et_al_2019_branes_with_brains3.pdf}, langid = {english}, number = {6} } @article{Halverson:2019:ComputationalComplexityVacua, title = {Computational Complexity of Vacua and Near-Vacua in Field and String Theory}, author = {Halverson, James and Ruehle, Fabian}, date = {2019}, journaltitle = {Physical Review D}, shortjournal = {Phys. Rev. D}, volume = {99}, pages = {046015}, issn = {2470-0010, 2470-0029}, doi = {10/gg66j7}, archivePrefix = {arXiv}, eprint = {1809.08279}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/halverson_ruehle_2019_computational_complexity_of_vacua_and_near-vacua_in_field_and_string_theory3.pdf}, keywords = {archived}, langid = {english}, number = {4} } @article{Halverson:2020:StatisticalPredictionsString, title = {Statistical {{Predictions}} in {{String Theory}} and {{Deep Generative Models}}}, author = {Halverson, James and Long, Cody}, date = {2020}, journaltitle = {Fortschritte der Physik}, shortjournal = {Fortschr. Phys.}, volume = {68}, pages = {2000005}, issn = {0015-8208, 1521-3978}, doi = {10/gg66j9}, archivePrefix = {arXiv}, eprint = {2001.00555}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/halverson_long_2020_statistical_predictions_in_string_theory_and_deep_generative_models2.pdf}, keywords = {archived}, langid = {english}, number = {5} } @article{Hashimoto:2003:RecombinationIntersectingDbranes, title = {Recombination of {{Intersecting D}}-Branes by {{Local Tachyon Condensation}}}, author = {Hashimoto, Koji and Nagaoka, Satoshi}, date = {2003}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2003}, pages = {034--034}, issn = {1029-8479}, doi = {10/fd2kjv}, abstract = {We provide a simple low energy description of recombination of intersecting D-branes using super Yang-Mills theory. The recombination is realized by condensation of an off-diagonal tachyonic fluctuation localized at the intersecting point. The recombination process is equivalent to brane-antibrane annihilation, thus our result confirms Sen's conjecture on tachyon condensation, although we work in the super Yang-Mills theory whose energy scale is much lower than alpha'. We also discuss the decay width of non-parallelly separated D-branes.}, archivePrefix = {arXiv}, eprint = {hep-th/0303204}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/hashimoto_nagaoka_2003_recombination_of_intersecting_d-branes_by_local_tachyon_condensation5.pdf}, number = {06} } @article{He:2017:MachinelearningStringLandscape, title = {Machine-Learning the String Landscape}, author = {He, Yang-Hui}, date = {2017}, journaltitle = {Physics Letters B}, shortjournal = {Physics Letters B}, volume = {774}, pages = {564--568}, issn = {03702693}, doi = {10/gcqfzv}, file = {/home/riccardo/.local/share/zotero/files/he_2017_machine-learning_the_string_landscape3.pdf}, keywords = {archived}, langid = {english} } @software{Head:2020:ScikitoptimizeScikitoptimize, title = {Scikit-Optimize/Scikit-Optimize}, author = {Head, Tim and Kumar, Manoj and Nahrstaedt, Holger and Louppe, Gilles and Shcherbatyi, Iaroslav}, date = {2020}, url = {https://zenodo.org/record/4014775}, organization = {{Zenodo}}, version = {v0.8.1} } @inproceedings{Ho:1995:RandomDecisionForests, title = {Random Decision Forests}, booktitle = {Proceedings of 3rd {{International Conference}} on {{Document Analysis}} and {{Recognition}}}, author = {Ho, Tin Kam}, date = {1995}, volume = {1}, pages = {278-282 vol.1}, doi = {10/c7x7s8}, abstract = {Decision trees are attractive classifiers due to their high execution speed. But trees derived with traditional methods often cannot be grown to arbitrary complexity for possible loss of generalization accuracy on unseen data. The limitation on complexity usually means suboptimal accuracy on training data. Following the principles of stochastic modeling, we propose a method to construct tree-based classifiers whose capacity can be arbitrarily expanded for increases in accuracy for both training and unseen data. The essence of the method is to build multiple trees in randomly selected subspaces of the feature space. Trees in, different subspaces generalize their classification in complementary ways, and their combined classification can be monotonically improved. The validity of the method is demonstrated through experiments on the recognition of handwritten digits.}, eventtitle = {Proceedings of 3rd {{International Conference}} on {{Document Analysis}} and {{Recognition}}}, file = {/home/riccardo/.local/share/zotero/files/ho_1995_random_decision_forests.pdf;/home/riccardo/.local/share/zotero/storage/I7UUJXK7/598994.html} } @article{Honecker:2012:FieldTheoryStandard, title = {Towards the Field Theory of the {{Standard Model}} on Fractional {{D6}}-Branes on {{T6}}/{{Z6}}: {{Yukawa}} Couplings and Masses}, author = {Honecker, Gabriele and Vanhoof, Joris}, date = {2012}, journaltitle = {Fortschritte der Physik}, volume = {60}, pages = {1050--1056}, issn = {00158208}, doi = {10/fz4mj9}, abstract = {We present the perturbative Yukawa couplings of the Standard Model on fractional intersecting D6-branes on T6/Z6' and discuss two mechanisms of creating mass terms for the vector-like particles in the matter spectrum, through perturbative three-point couplings and through continuous D6-brane displacements.}, archivePrefix = {arXiv}, eprint = {1201.5872}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/honecker_vanhoof_2012_towards_the_field_theory_of_the_standard_model_on_fractional_d6-branes_on_t6-ℤ6′.pdf}, number = {9-10} } @article{Horowitz:1991:SingularStringSolutions, title = {Singular String Solutions with Nonsingular Initial Data}, author = {Horowitz, Gary T. and Steif, Alan R.}, date = {1991}, journaltitle = {Physics Letters B}, shortjournal = {Physics Letters B}, volume = {258}, pages = {91--96}, issn = {03702693}, doi = {10/dzbvx3}, keywords = {archived}, langid = {english}, number = {1-2} } @article{Horowitz:2002:InstabilitySpacelikeNull, title = {Instability of Spacelike and Null Orbifold Singularities}, author = {Horowitz, Gary T. and Polchinski, Joseph}, date = {2002}, journaltitle = {Physical Review D}, shortjournal = {Phys. Rev. D}, volume = {66}, pages = {103512}, issn = {0556-2821, 1089-4918}, doi = {10/frkxrv}, archivePrefix = {arXiv}, eprint = {hep-th/0206228}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/horowitz_polchinski_2002_instability_of_spacelike_and_null_orbifold_singularities.pdf}, keywords = {archived}, langid = {english}, number = {10} } @book{Hubsch:1992:CalabiyauManifoldsBestiary, title = {Calabi-Yau Manifolds: A Bestiary for Physicists}, author = {Hübsch, Tristan}, date = {1992}, publisher = {{World Scientific}}, url = {https://www.worldscientific.com/worldscibooks/10.1142/1410}, file = {/home/riccardo/.local/share/zotero/files/hubsch_1992_calabi-yau_manifolds.pdf}, isbn = {978-981-02-1927-7} } @article{Hunter:2007:Matplotlib2DGraphics, title = {Matplotlib: {{A 2D}} Graphics Environment}, author = {Hunter, John D.}, date = {2007}, journaltitle = {Computing in Science Engineering}, volume = {9}, pages = {90--95}, doi = {10/drbjhg}, number = {3} } @article{Ibanez:2001:GettingJustStandard, title = {Getting Just the Standard Model at Intersecting Branes}, author = {Ibanez, Luis E. and Marchesano, Fernando and Rabadán, Raúl}, date = {2001}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2001}, pages = {002--002}, issn = {1029-8479}, doi = {10/drzgmv}, archivePrefix = {arXiv}, eprint = {hep-th/0105155}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/nez_et_al_2001_getting_just_the_standard_model_at_intersecting_branes.pdf}, keywords = {archived}, number = {11} } @book{Ibanez:2012:StringTheoryParticle, title = {String Theory and Particle Physics: {{An}} Introduction to String Phenomenology}, author = {Ibanez, Luis E. and Uranga, Angel M.}, date = {2012}, publisher = {{Cambridge University Press}}, file = {/home/riccardo/.local/share/zotero/files/ibanez_uranga_2012_string_theory_and_particle_physics2.pdf}, isbn = {978-0-521-51752-2} } @article{Inoue:1987:NonAbelianOrbifolds, title = {Non-{{Abelian Orbifolds}}}, author = {Inoue, Kenzo and Sakamoto, Makoto and Takano, Hiroshi}, date = {1987}, journaltitle = {Progress of Theoretical Physics}, shortjournal = {Progress of Theoretical Physics}, volume = {78}, pages = {908--922}, issn = {0033-068X, 1347-4081}, doi = {10/bfp9q4}, file = {/home/riccardo/.local/share/zotero/files/inoue_et_al_1987_non-abelian_orbifolds2.pdf}, keywords = {archived}, langid = {english}, number = {4} } @article{Inoue:1990:StringInteractionsNonAbelian, title = {String {{Interactions}} on {{Non}}-{{Abelian Orbifold}}}, author = {Inoue, Kenzo and Nima, Shuij}, date = {1990}, journaltitle = {Progress of Theoretical Physics}, shortjournal = {Progress of Theoretical Physics}, volume = {84}, pages = {702--727}, issn = {0033-068X, 1347-4081}, doi = {10/ghf4n4}, file = {/home/riccardo/.local/share/zotero/files/inoue_nima_1990_string_interactions_on_non-abelian_orbifold.pdf}, keywords = {archived}, langid = {english}, number = {4} } @online{Ioffe:2015:BatchNormalizationAccelerating, title = {Batch {{Normalization}}: {{Accelerating Deep Network Training}} by {{Reducing Internal Covariate Shift}}}, shorttitle = {Batch {{Normalization}}}, author = {Ioffe, Sergey and Szegedy, Christian}, date = {2015}, abstract = {Training Deep Neural Networks is complicated by the fact that the distribution of each layer's inputs changes during training, as the parameters of the previous layers change. This slows down the training by requiring lower learning rates and careful parameter initialization, and makes it notoriously hard to train models with saturating nonlinearities. We refer to this phenomenon as internal covariate shift, and address the problem by normalizing layer inputs. Our method draws its strength from making normalization a part of the model architecture and performing the normalization for each training mini-batch. Batch Normalization allows us to use much higher learning rates and be less careful about initialization. It also acts as a regularizer, in some cases eliminating the need for Dropout. Applied to a state-of-the-art image classification model, Batch Normalization achieves the same accuracy with 14 times fewer training steps, and beats the original model by a significant margin. Using an ensemble of batch-normalized networks, we improve upon the best published result on ImageNet classification: reaching 4.9\% top-5 validation error (and 4.8\% test error), exceeding the accuracy of human raters.}, archivePrefix = {arXiv}, eprint = {1502.03167}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/ioffe_szegedy_2015_batch_normalization.pdf;/home/riccardo/.local/share/zotero/storage/L94NDAT8/1502.html} } @article{Jackiw:1992:ElectromagneticFieldsMassless, title = {Electromagnetic Fields of a Massless Particle and the Eikonal}, author = {Jackiw, R. and Kabat, D. and Ortiz, M.}, date = {1992}, journaltitle = {Physics Letters B}, shortjournal = {Physics Letters B}, volume = {277}, pages = {148--152}, issn = {0370-2693}, doi = {10/fs877h}, abstract = {Electromagnetic fields of a massless charged particle are described by a gauge potential that is almost everywhere a pure gauge. Solution of quantum mechanical wave equations in the presence of such fields is therefore immediate and leads to a new derivation of the quantum electrodynamical eikonal approximation. The electromagnetic action in the eikonal limit is localized on a contour in a two-dimensional Minkowski subspace of four-dimensional space-time. The exact S-matrix of this reduced theory reproduces the eikonal approximation. In this way, we apply the recent gravitational consideration of't Hooft as well and Verlinde and Verlinde to electromagnetism.}, archivePrefix = {arXiv}, eprint = {hep-th/9112020}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/jackiw_et_al_1992_electromagnetic_fields_of_a_massless_particle_and_the_eikonal.pdf}, number = {1} } @book{Joyce:2000:CompactManifoldsSpecial, title = {Compact Manifolds with Special Holonomy}, author = {Joyce, Dominic}, date = {2000}, publisher = {{Oxford University Press}}, file = {/home/riccardo/.local/share/zotero/files/joyce_2000_compact_manifolds_with_special_holonomy.pdf}, isbn = {978-0-19-850601-0} } @online{Joyce:2002:LecturesCalabiYauSpecial, title = {Lectures on {{Calabi}}-{{Yau}} and Special {{Lagrangian}} Geometry}, author = {Joyce, Dominic}, date = {2002}, abstract = {This paper gives a leisurely introduction to Calabi-Yau manifolds and special Lagrangian submanifolds from the differential geometric point of view, followed by a survey of recent results on singularities of special Lagrangian submanifolds, and their application to the SYZ Conjecture. It is aimed at graduate students in Geometry, String Theorists, and others wishing to learn the subject, and is designed to be fairly self-contained. It is based on lecture courses given at Nordfjordeid, Norway and MSRI, Berkeley in June and July 2001. We introduce Calabi-Yau m-folds via holonomy groups, Kahler geometry and the Calabi Conjecture, and special Lagrangian m-folds via calibrated geometry. `Almost Calabi-Yau m-folds' (a generalization of Calabi-Yau m-folds useful in special Lagrangian geometry) are explained and the deformation theory and moduli spaces of compact special Lagrangian submanifolds in (almost) Calabi-Yau m-folds is described. In the final part we consider isolated singularities of special Lagrangian m-folds, focussing mainly on singularities locally modelled on cones, and the expected behaviour of singularities of compact special Lagrangian m-folds in generic (almost) Calabi-Yau m-folds. String Theory, Mirror Symmetry and the SYZ Conjecture are briefly discussed, and some results of the author on singularities of special Lagrangian fibrations of Calabi-Yau 3-folds are described.}, archivePrefix = {arXiv}, eprint = {math/0108088}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/joyce_2002_lectures_on_calabi-yau_and_special_lagrangian_geometry2.pdf} } @article{Kachru:2003:SitterVacuaString, title = {De {{Sitter Vacua}} in {{String Theory}}}, author = {Kachru, Shamit and Kallosh, Renata and Linde, Andrei and Trivedi, Sandip P.}, date = {2003}, journaltitle = {Physical Review D}, shortjournal = {Phys. Rev. D}, volume = {68}, pages = {046005}, issn = {0556-2821, 1089-4918}, doi = {10/bfvjj7}, abstract = {We outline the construction of metastable de Sitter vacua of type IIB string theory. Our starting point is highly warped IIB compactifications with nontrivial NS and RR three-form fluxes. By incorporating known corrections to the superpotential from Euclidean D-brane instantons or gaugino condensation, one can make models with all moduli fixed, yielding a supersymmetric AdS vacuum. Inclusion of a small number of anti-D3 branes in the resulting warped geometry allows one to uplift the AdS minimum and make it a metastable de Sitter ground state. The lifetime of our metastable de Sitter vacua is much greater than the cosmological timescale of 10\^10 years. We also prove, under certain conditions, that the lifetime of dS space in string theory will always be shorter than the recurrence time.}, archivePrefix = {arXiv}, eprint = {hep-th/0301240}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/kachru_et_al_2003_de_sitter_vacua_in_string_theory.pdf}, number = {4} } @online{Kingma:2014:AutoEncodingVariationalBayes, title = {Auto-{{Encoding Variational Bayes}}}, author = {Kingma, Diederik P. and Welling, Max}, date = {2014}, abstract = {How can we perform efficient inference and learning in directed probabilistic models, in the presence of continuous latent variables with intractable posterior distributions, and large datasets? We introduce a stochastic variational inference and learning algorithm that scales to large datasets and, under some mild differentiability conditions, even works in the intractable case. Our contributions is two-fold. First, we show that a reparameterization of the variational lower bound yields a lower bound estimator that can be straightforwardly optimized using standard stochastic gradient methods. Second, we show that for i.i.d. datasets with continuous latent variables per datapoint, posterior inference can be made especially efficient by fitting an approximate inference model (also called a recognition model) to the intractable posterior using the proposed lower bound estimator. Theoretical advantages are reflected in experimental results.}, archivePrefix = {arXiv}, eprint = {1312.6114}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/kingma_welling_2014_auto-encoding_variational_bayes2.pdf;/home/riccardo/.local/share/zotero/storage/KYP8BISG/1312.html} } @online{Kingma:2017:AdamMethodStochastic, title = {Adam: {{A Method}} for {{Stochastic Optimization}}}, shorttitle = {Adam}, author = {Kingma, Diederik P. and Ba, Jimmy}, date = {2017}, abstract = {We introduce Adam, an algorithm for first-order gradient-based optimization of stochastic objective functions, based on adaptive estimates of lower-order moments. The method is straightforward to implement, is computationally efficient, has little memory requirements, is invariant to diagonal rescaling of the gradients, and is well suited for problems that are large in terms of data and/or parameters. The method is also appropriate for non-stationary objectives and problems with very noisy and/or sparse gradients. The hyper-parameters have intuitive interpretations and typically require little tuning. Some connections to related algorithms, on which Adam was inspired, are discussed. We also analyze the theoretical convergence properties of the algorithm and provide a regret bound on the convergence rate that is comparable to the best known results under the online convex optimization framework. Empirical results demonstrate that Adam works well in practice and compares favorably to other stochastic optimization methods. Finally, we discuss AdaMax, a variant of Adam based on the infinity norm.}, archivePrefix = {arXiv}, eprint = {1412.6980}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/kingma_ba_2017_adam3.pdf;/home/riccardo/.local/share/zotero/storage/9JQ8YQL7/1412.html} } @online{Kingma:2017:AdamMethodStochastica, title = {Adam: {{A Method}} for {{Stochastic Optimization}}}, shorttitle = {Adam}, author = {Kingma, Diederik P. and Ba, Jimmy}, date = {2017}, abstract = {We introduce Adam, an algorithm for first-order gradient-based optimization of stochastic objective functions, based on adaptive estimates of lower-order moments. The method is straightforward to implement, is computationally efficient, has little memory requirements, is invariant to diagonal rescaling of the gradients, and is well suited for problems that are large in terms of data and/or parameters. The method is also appropriate for non-stationary objectives and problems with very noisy and/or sparse gradients. The hyper-parameters have intuitive interpretations and typically require little tuning. Some connections to related algorithms, on which Adam was inspired, are discussed. We also analyze the theoretical convergence properties of the algorithm and provide a regret bound on the convergence rate that is comparable to the best known results under the online convex optimization framework. Empirical results demonstrate that Adam works well in practice and compares favorably to other stochastic optimization methods. Finally, we discuss AdaMax, a variant of Adam based on the infinity norm.}, archivePrefix = {arXiv}, eprint = {1412.6980}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/kingma_ba_2017_adam.pdf;/home/riccardo/.local/share/zotero/files/kingma_ba_2017_adam2.pdf;/home/riccardo/.local/share/zotero/storage/EYEANITG/1412.html} } @article{Kiritsis:1994:StringPropagationGravitational, title = {String {{Propagation}} in {{Gravitational Wave Backgrounds}}}, author = {Kiritsis, Elias and Kounnas, Costas}, date = {1994}, journaltitle = {Physics Letters B}, shortjournal = {Physics Letters B}, volume = {320}, pages = {264--272}, issn = {03702693}, doi = {10/bswvpn}, abstract = {The Conformal Field Theory of the current algebra of the centrally extended 2-d Euclidean group is analyzed. Its representations can be written in terms of four free fields (without background charge) with signature (\$-\$+++). We construct all irreducible representations of the current algebra with unitary base out of the free fields and their orbifolds. This is used to investigate the spectrum and scattering of strings moving in the background of a gravitational wave. We find that all the dynamics happens in the transverse space or the longitunal one but not both.}, archivePrefix = {arXiv}, eprint = {hep-th/9310202}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/kiritsis_kounnas_1994_string_propagation_in_gravitational_wave_backgrounds5.pdf}, number = {3-4} } @article{Klaewer:2019:MachineLearningLine, title = {Machine Learning Line Bundle Cohomologies of Hypersurfaces in Toric Varieties}, author = {Klaewer, Daniel and Schlechter, Lorenz}, date = {2019}, journaltitle = {Physics Letters B}, shortjournal = {Physics Letters B}, volume = {789}, pages = {438--443}, issn = {03702693}, doi = {10/gg66kq}, archivePrefix = {arXiv}, eprint = {1809.02547}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/klaewer_schlechter_2019_machine_learning_line_bundle_cohomologies_of_hypersurfaces_in_toric_varieties5.pdf}, keywords = {archived}, langid = {english} } @article{Krefl:2017:MachineLearningCalabiYau, title = {Machine Learning of {{Calabi}}-{{Yau}} Volumes}, author = {Krefl, Daniel and Seong, Rak-Kyeong}, date = {2017}, journaltitle = {Physical Review D}, shortjournal = {Phys. Rev. D}, volume = {96}, pages = {066014}, issn = {2470-0010, 2470-0029}, doi = {10/gcpp5w}, file = {/home/riccardo/.local/share/zotero/files/krefl_seong_2017_machine_learning_of_calabi-yau_volumes.pdf;/home/riccardo/.local/share/zotero/files/krefl_seong_2017_machine_learning_of_calabi-yau_volumes3.pdf}, keywords = {archived}, langid = {english}, number = {6} } @article{Kreuzer:2000:CompleteClassificationReflexive, title = {Complete Classification of Reflexive Polyhedra in Four Dimensions}, author = {Kreuzer, Maximilian and Skarke, Harald}, date = {2000}, journaltitle = {Advances in theoretical and mathematical physics}, volume = {4}, pages = {1209--1230}, issn = {10950761, 10950753}, doi = {10.4310/ATMP.2000.v4.n6.a2}, archivePrefix = {arXiv}, eprint = {hep-th/0002240}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/kreuzer_skarke_2000_complete_classification_of_reflexive_polyhedra_in_four_dimensions.pdf}, keywords = {archived}, langid = {english}, number = {6} } @online{Krippendorf:2020:DetectingSymmetriesNeural, title = {Detecting {{Symmetries}} with {{Neural Networks}}}, author = {Krippendorf, Sven and Syvaeri, Marc}, date = {2020}, abstract = {Identifying symmetries in data sets is generally difficult, but knowledge about them is crucial for efficient data handling. Here we present a method how neural networks can be used to identify symmetries. We make extensive use of the structure in the embedding layer of the neural network which allows us to identify whether a symmetry is present and to identify orbits of the symmetry in the input. To determine which continuous or discrete symmetry group is present we analyse the invariant orbits in the input. We present examples based on rotation groups \$SO(n)\$ and the unitary group \$SU(2).\$ Further we find that this method is useful for the classification of complete intersection Calabi-Yau manifolds where it is crucial to identify discrete symmetries on the input space. For this example we present a novel data representation in terms of graphs.}, archivePrefix = {arXiv}, eprint = {2003.13679}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/krippendorf_syvaeri_2020_detecting_symmetries_with_neural_networks2.pdf;/home/riccardo/.local/share/zotero/storage/F9KQKQ3Q/2003.html} } @article{Liu:2002:StringsTimeDependentOrbifold, title = {Strings in a {{Time}}-{{Dependent Orbifold}}}, author = {Liu, Hong and Moore, Gregory and Seiberg, Nathan}, date = {2002}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2002}, pages = {045--045}, issn = {1126-6708}, doi = {10/b2d2mj}, abstract = {We consider string theory in a time dependent orbifold with a null singularity. The singularity separates a contracting universe from an expanding universe, thus constituting a big crunch followed by a big bang. We quantize the theory both in light-cone gauge and covariantly. We also compute some tree and one loop amplitudes which exhibit interesting behavior near the singularity. Our results are compatible with the possibility that strings can pass through the singularity from the contracting to the expanding universe, but they also indicate the need for further study of certain divergent scattering amplitudes.}, archivePrefix = {arXiv}, eprint = {hep-th/0204168}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/liu_et_al_2002_strings_in_a_time-dependent_orbifold.pdf}, langid = {english}, number = {06} } @article{Liu:2002:StringsTimeDependentOrbifolds, title = {Strings in {{Time}}-{{Dependent Orbifolds}}}, author = {Liu, Hong and Moore, Gregory and Seiberg, Nathan}, date = {2002}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2002}, pages = {031--031}, issn = {1126-6708}, doi = {20050405175528}, abstract = {We continue and extend our earlier investigation “Strings in a Time-Dependent Orbifold” (hep-th/0204168). We formulate conditions for an orbifold to be amenable to perturbative string analysis and classify the low dimensional orbifolds satisfying these conditions. We analyze the tree and torus amplitudes of some of these orbifolds. The tree amplitudes exhibit a new kind of infrared divergences which are a result of some ultraviolet effects. These UV enhanced IR divergences can be interpreted as due to back reaction of the geometry. We argue that for this reason the three dimensional parabolic orbifold is not amenable to perturbation theory. Similarly, the smooth four dimensional null-brane tensored with sufficiently few noncompact dimensions also appears problematic. However, when the number of noncompact dimensions is sufficiently large perturbation theory in these time dependent backgrounds seems consistent.}, archivePrefix = {arXiv}, eprint = {hep-th/0206182}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/liu_et_al_2002_strings_in_time_dependent_orbifolds.pdf}, langid = {english}, number = {10} } @article{Lust:2009:LHCStringHunter, title = {The {{LHC String Hunter}}'s {{Companion}}}, author = {Lüst, Dieter and Stieberger, Stephan and Taylor, Tomasz R.}, date = {2009}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {808}, pages = {1--52}, issn = {05503213}, doi = {10/fdcxt4}, abstract = {The mass scale of fundamental strings can be as low as few TeV/c\^2 provided that spacetime extends into large extra dimensions. We discuss the phenomenological aspects of weakly coupled low mass string theory related to experimental searches for physics beyond the Standard Model at the Large Hadron Collider (LHC). We consider the extensions of the Standard Model based on open strings ending on D-branes, with gauge bosons due to strings attached to stacks of D-branes and chiral matter due to strings stretching between intersecting D-branes. We focus on the model-independent, universal features of low mass string theory. We compute, collect and tabulate the full-fledged string amplitudes describing all 2-{$>$}2 parton scattering subprocesses at the leading order of string perturbation theory. We cast our results in a form suitable for the implementation of stringy partonic cross sections in the LHC data analysis. The amplitudes involving four gluons as well as those with two gluons plus two quarks do not depend on the compactification details and are completely model-independent. They exhibit resonant behavior at the parton center of mass energies equal to the masses of Regge resonances. The existence of these resonances is the primary signal of string physics and should be easy to detect. On the other hand, the four-fermion processes like quark-antiquark scattering include also the exchanges of heavy Kaluza-Klein and winding states, whose details depend on the form of internal geometry. They could be used as ``precision tests'' in order to distinguish between various compactification scenarios.}, archivePrefix = {arXiv}, eprint = {0807.3333}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/lust_et_al_2009_the_lhc_string_hunter's_companion.pdf}, number = {1-2} } @article{Lust:2009:SeeingStringLandscape, title = {Seeing through the String Landscape—a String Hunter's Companion in Particle Physics and Cosmology}, author = {Lüst, Dieter}, date = {2009}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energy Phys.}, volume = {2009}, pages = {149--149}, issn = {1029-8479}, doi = {10/bc336m}, archivePrefix = {arXiv}, eprint = {0904.4601}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/lüst_2009_seeing_through_the_string_landscape—a_string_hunter's_companion_in_particle.pdf}, keywords = {archived}, number = {03} } @inproceedings{Lutken:1988:RecentProgressCalabiYauology, title = {Recent {{Progress}} in {{Calabi}}-{{Yauology}}}, author = {Lütken, Carsten Andrew}, date = {1988}, doi = {10/cw4cz2} } @article{Mallat:2016:UnderstandingDeepConvolutional, title = {Understanding Deep Convolutional Networks}, author = {Mallat, Stéphane}, date = {2016}, journaltitle = {Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences}, volume = {374}, pages = {20150203}, doi = {10/gcsgwj}, file = {/home/riccardo/.local/share/zotero/files/mallat_2016_understanding_deep_convolutional_networks2.pdf}, number = {2065} } @article{Maurer:2016:BenefitMultitaskRepresentation, title = {The Benefit of Multitask Representation Learning}, author = {Maurer, Andreas and Pontil, Massimiliano and Romera-Paredes, Bernardino}, date = {2016}, journaltitle = {The Journal of Machine Learning Research}, volume = {17}, pages = {2853--2884}, number = {1} } @inproceedings{Mockus:1975:BayesianMethodsSeeking, title = {On Bayesian Methods for Seeking the Extremum}, booktitle = {Optimization {{Techniques IFIP Technical Conference Novosibirsk}}, {{July}} 1–7, 1974}, author = {Močkus, J.}, editor = {Marchuk, G. I.}, date = {1975}, pages = {400--404}, publisher = {{Springer}}, location = {{Berlin, Heidelberg}}, doi = {10/dh23rk}, file = {/home/riccardo/.local/share/zotero/files/močkus_1975_on_bayesian_methods_for_seeking_the_extremum.pdf}, isbn = {978-3-540-37497-8}, langid = {english}, series = {Lecture {{Notes}} in {{Computer Science}}} } @inproceedings{Monti:2017:GeometricDeepLearning, title = {Geometric Deep Learning on Graphs and Manifolds Using Mixture Model Cnns}, booktitle = {Proceedings of the {{IEEE}} Conference on Computer Vision and Pattern Recognition}, author = {Monti, Federico and Boscaini, Davide and Masci, Jonathan and Rodola, Emanuele and Svoboda, Jan and Bronstein, Michael M.}, date = {2017}, pages = {5115--5124} } @article{Mutter:2019:DeepLearningHeterotic, title = {Deep Learning in the Heterotic Orbifold Landscape}, author = {Mütter, Andreas and Parr, Erik and Vaudrevange, Patrick K. S.}, date = {2019}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {940}, pages = {113--129}, issn = {05503213}, doi = {10/gg66kz}, archivePrefix = {arXiv}, eprint = {1811.05993}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/mütter_et_al_2019_deep_learning_in_the_heterotic_orbifold_landscape3.pdf}, keywords = {archived}, langid = {english} } @inproceedings{Ndirango:2019:GeneralizationMultitaskDeep, title = {Generalization in Multitask Deep Neural Classifiers: A Statistical Physics Approach}, booktitle = {Advances in Neural Information Processing Systems}, author = {Ndirango, Anthony and Lee, Tyler}, date = {2019}, pages = {15862--15871}, archivePrefix = {arXiv}, eprint = {1910.13593}, eprinttype = {arxiv} } @article{Nilsson:1990:GeneralNSRString, title = {General {{NSR}} String Reggeon Vertices from a Dual Ramond Vertex}, author = {Nilsson, Bengt E. W. and Tollstén, Anna K.}, date = {1990}, journaltitle = {Physics Letters B}, shortjournal = {Physics Letters B}, volume = {240}, pages = {96--104}, issn = {03702693}, doi = {10/fbgqqd}, keywords = {archived}, langid = {english}, number = {1-2} } @article{Olver:2020:NISTDigitalLibrary, title = {{{NIST}} Digital Library of Mathematical Functions}, editor = {Olver, Frank W. J. and Olde Daalhuis, Adri and Lozier, Daniel W. and Schneider, Barry I. and Boisvert, Ronald F. and Clark, Charles W. and Miller, Bradley R. and Saunders, Bonita V. and Cohl, Howard S. and McClain, Maxine A.}, date = {2020}, url = {http://dlmf.nist.gov} } @article{Otsuka:2020:DeepLearningKmeans, title = {Deep Learning and K-Means Clustering in Heterotic String Vacua with Line Bundles}, author = {Otsuka, Hajime and Takemoto, Kenta}, date = {2020}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2020}, pages = {47}, issn = {1029-8479}, doi = {10/gg66k2}, archivePrefix = {arXiv}, eprint = {2003.11880}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/otsuka_takemoto_2020_deep_learning_and_k-means_clustering_in_heterotic_string_vacua_with_line_bundles3.pdf}, langid = {english}, number = {5} } @article{Parr:2020:ContrastDataMining, title = {Contrast Data Mining for the {{MSSM}} from Strings}, author = {Parr, Erik and Vaudrevange, Patrick K.S.}, date = {2020}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {952}, pages = {114922}, issn = {05503213}, doi = {10/ghf4n5}, archivePrefix = {arXiv}, eprint = {1910.13473}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/parr_vaudrevange_2020_contrast_data_mining_for_the_mssm_from_strings2.pdf}, keywords = {archived}, langid = {english} } @article{Parr:2020:PredictingOrbifoldOrigin, title = {Predicting the {{Orbifold Origin}} of the {{MSSM}}}, author = {Parr, Erik and Vaudrevange, Patrick K. S. and Wimmer, Martin}, date = {2020}, journaltitle = {Fortschritte der Physik}, shortjournal = {Fortschr. Phys.}, volume = {68}, pages = {2000032}, issn = {0015-8208, 1521-3978}, doi = {10/ghf4n6}, archivePrefix = {arXiv}, eprint = {2003.01732}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/parr_et_al_2020_predicting_the_orbifold_origin_of_the_mssm2.pdf}, keywords = {archived}, langid = {english}, number = {5} } @article{Pedregosa:2011:ScikitlearnMachineLearning, title = {Scikit-Learn: {{Machine}} Learning in Python}, author = {Pedregosa, Fabian and Varoquaux, Gaël and Gramfort, Alexandre and Michel, Vincent and Thirion, Bertrand and Grisel, Olivier and Blondel, Mathieu and Prettenhofer, Peter and Weiss, Ron and Dubourg, Vincent and Vanderplas, Jake and Passos, Alexandre and Cournapeau, David and Brucher, Matthieu and Perrot, Matthieu and Duchesnay, Édouard}, date = {2011}, journaltitle = {Journal of Machine Learning Research}, volume = {12}, pages = {2825--2830}, url = {http://jmlr.org/papers/v12/pedregosa11a.html}, file = {/home/riccardo/.local/share/zotero/files/pedregosa_et_al_2011_scikit-learn2.pdf}, number = {85} } @inproceedings{Peng:2017:LargeKernelMattersa, title = {Large Kernel Matters. {{Improve}} Semantic Segmentation by Global Convolutional Network}, booktitle = {Proceedings of the {{IEEE}} Conference on Computer Vision and Pattern Recognition}, author = {Peng, Chao and Zhang, Xiangyu and Yu, Gang and Luo, Guiming and Sun, Jian}, date = {2017}, pages = {4353--4361}, file = {/home/riccardo/.local/share/zotero/files/peng_et_al_2017_large_kernel_matters–improve_semantic_segmentation_by_global_convolutional.pdf} } @article{Pesando:2008:MultibranesBoundaryStates, title = {Multi-Branes Boundary States with Open String Interactions}, author = {Pesando, Igor}, date = {2008}, journaltitle = {Nuclear Physics B}, volume = {793}, pages = {211--245}, issn = {05503213}, doi = {10/bh6q64}, abstract = {We derive boundary states which describe configurations of multiple parallel branes with arbitrary open string states interactions in bosonic string theory. This is obtained by a careful discussion of the factorization of open/closed string states amplitudes taking care of cycles needed by ensuring vertexes commutativity: in particular the discussion reveals that already at the tree level open string knows of the existence of closed string. We also give a formal expression for computing pure closed string amplitudes using the open string formalism.}, archivePrefix = {arXiv}, eprint = {hep-th/0310027}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/pesando_2008_multi-branes_boundary_states_with_open_string_interactions.pdf}, number = {1-2} } @article{Pesando:2010:OpenClosedString, title = {Open and {{Closed String Vertices}} for Branes with Magnetic Field and {{T}}-Duality}, author = {Pesando, Igor}, date = {2010}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2010}, pages = {64}, issn = {1029-8479}, doi = {10/fr82w9}, abstract = {We discuss carefully the vertices which describe the dipole open strings and closed strings on a D-brane with magnetic flux on a torus. Translation invariance along closed cycles forces surprisingly closed string vertices written in open string formalism to acquire Chan-Paton like matrices. Moreover the one loop amplitudes have a single trace for the part of gauge group with the magnetic flux. These peculiarities are also required by consistency of the action of T-duality in the open string sector. In this way we can show to all orders in perturbation theory the equivalence of the T-dual open string theories, gravitational interactions included. We provide also a new and direct derivation of the bosonic boundary state in presence of constant magnetic and Kalb-Ramond background based on Sciuto-Della Selva-Saito vertex formalism.}, archivePrefix = {arXiv}, eprint = {0910.2576}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/pesando_2010_open_and_closed_string_vertices_for_branes_with_magnetic_field_and_t-duality5.pdf}, number = {2} } @online{Pesando:2011:GeneratingFunctionAmplitudes, title = {The Generating Function of Amplitudes with {{N}} Twisted and {{M}} Untwisted States}, author = {Pesando, Igor}, date = {2011}, abstract = {We show that the generating function of all amplitudes with N twisted and M untwisted states, i.e. the Reggeon vertex for magnetized branes on R\^2 can be computed once the correlator of N non excited twisted states and the corresponding Green function are known and we give an explicit expression as a functional of the these objects}, archivePrefix = {arXiv}, eprint = {1107.5525}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/pesando_2011_the_generating_function_of_amplitudes_with_n_twisted_and_m_untwisted_states.pdf} } @article{Pesando:2011:StringsArbitraryConstant, title = {Strings in an Arbitrary Constant Magnetic Field with Arbitrary Constant Metric and Stringy Form Factors}, author = {Pesando, Igor}, date = {2011}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2011}, pages = {138}, issn = {1029-8479}, doi = {10/ddhtfm}, abstract = {We quantize the open string in an arbitrary constant magnetic field with a non factorized metric on a torus. We then discuss carefully the vertexes which describe the emission of dipole open strings and closed strings in the non compact limit. Finally we compute various stringy form factors which in the compact case induces a Kaehler and complex structure dependence and suppression of some amplitudes with KK states.}, archivePrefix = {arXiv}, eprint = {1101.5898}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/pesando_2011_strings_in_an_arbitrary_constant_magnetic_field_with_arbitrary_constant_metric5.pdf}, number = {6} } @article{Pesando:2012:GreenFunctionsTwist, title = {Green Functions and Twist Correlators for {{N}} Branes at Angles}, author = {Pesando, Igor}, date = {2012}, journaltitle = {Nuclear Physics B}, volume = {866}, pages = {87--123}, issn = {05503213}, doi = {10/gf66ch}, abstract = {We compute the Green functions and correlator functions for N twist fields for branes at angles on T\^2 and we show that there are N-2 different configurations labeled by an integer M which is roughly associated with the number of obtuse angles of the configuration. In order to perform this computation we use a SL(2,R) invariant formulation and geometric constraints instead of Pochammer contours. In particular the M=1 or M=N-1 amplitude can be expressed without using transcendental functions. We determine the amplitudes normalization from N -\textbackslash textgreater N-1 reduction without using the factorization into the untwisted sector. Both the amplitudes normalization and the OPE of two twist fields are unique (up to one constant) when the \$\textbackslash backslash\$epsilon \textbackslash textless-\textbackslash textgreater 1-\$\textbackslash backslash\$epsilon symmetry is imposed. For consistency we find also an infinite number of relations among Lauricella hypergeometric functions.}, archivePrefix = {arXiv}, eprint = {1206.1431}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/pesando_2012_green_functions_and_twist_correlators_for_$n$_branes_at_angles.pdf}, number = {2} } @article{Pesando:2013:LightConeQuantization, title = {Light Cone Quantization and Interactions of a New Closed Bosonic String Inspired to {{D1}} String}, author = {Pesando, Igor}, date = {2013}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {876}, pages = {1--15}, issn = {05503213}, doi = {10/f5cppv}, abstract = {We quantize the bosonic part of the D1 string with closed boundary conditions on the light cone and we consider the U(1) worldsheet gauge field a dynamical variable. We compute also 3-Reggeon vertex by the overlapping technique. We find that the Fock space is the sum of sectors characterized by the momentum of the U(1) Wilson line and that these sectors do not interact among them. Each sector has exactly the same spectrum of the usual bosonic string when expressed in properly sector dependent rescaled variables. Rescaling is forced by factorization of the string amplitudes. We are also able to determine the relative string coupling constant of the different sectors. It follows a somewhat unexpected picture in which the effective action is always the same independently on the sector but string amplitudes are only the same when expressed in sector dependent rescaled variables.}, archivePrefix = {arXiv}, eprint = {1305.2710}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/pesando_2013_light_cone_quantization_and_interactions_of_a_new_closed_bosonic_string5.pdf}, number = {1} } @article{Pesando:2014:CanonicalQuantizationString, title = {Canonical Quantization of a String Describing {{N}} Branes at Angles}, author = {Pesando, Igor}, date = {2014}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {889}, pages = {120--155}, issn = {05503213}, doi = {10/f6vwhg}, abstract = {We study the canonical quantization of a bosonic string in presence of N twist fields. This generalizes the quantization of the twisted string in two ways: the in and out states are not necessarily twisted and the number of twist fields N can be bigger than 2. In order to quantize the theory we need to find the normal modes. Then we need to define a product between two modes which is conserved. Because of this we need to use the Klein-Gordon product and to separate the string coordinate into the classical and the quantum part. The quantum part has different boundary conditions than the original string coordinates but these boundary conditions are precisely those which make the operator describing the equation of motion self adjoint. The splitting of the string coordinates into a classical and quantum part allows the formulation of an improved overlap principle. Using this approach we then proceed in computing the generating function for the generic correlator with L untwisted operators and N (excited) twist fields for branes at angles. We recover as expected the results previously obtained using the path integral. This construction explains why these correlators}, archivePrefix = {arXiv}, eprint = {1407.4627}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/pesando_2014_canonical_quantization_of_a_string_describing_$n$_branes_at_angles.pdf} } @article{Pesando:2014:CorrelatorsArbitraryUntwisted, title = {Correlators of Arbitrary Untwisted Operators and Excited Twist Operators for {{N}} Branes at Angles}, author = {Pesando, Igor}, date = {2014}, journaltitle = {Nuclear Physics B}, volume = {886}, pages = {243--287}, issn = {05503213}, doi = {10/gf66cg}, abstract = {We compute the generic correlator with L untwisted operators and N (excited) twist fields for branes at angles on T\^2 and show that it is given by a generalization of the Wick theorem. We give also the recipe to compute efficiently the generic OPE between an untwisted operator and an excited twisted state.}, archivePrefix = {arXiv}, eprint = {1401.6797}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/pesando_2014_correlators_of_arbitrary_untwisted_operators_and_excited_twist_operators_for_n2.pdf} } @article{Pesando:2016:FullyStringyComputation, title = {Towards a Fully Stringy Computation of {{Yukawa}} Couplings on Non-Factorized Tori and Non-{{Abelian}} Twist Correlators ({{I}}): {{The}} Classical Solution and Action}, author = {Pesando, Igor}, date = {2016}, journaltitle = {Nuclear Physics B}, volume = {910}, pages = {618--664}, issn = {05503213}, doi = {10/f82v5m}, abstract = {We consider the simplest possible setting of non-abelian twist fields which corresponds to SU(2) monodromies. We first review the theory of hypergeometric function and of the solutions of the most general Fuchsian second order equation with three singularities. Then we solve the problem of writing the general solution with prescribed U(2) monodromies. We use this result to compute the classical string solution corresponding to three D2 branes in R4. Despite the fact that the configuration is supersymmetric the classical string solution is not holomorphic. Using the equation of motion and not the KLT approach we give a very simple expression for the classical action of the string. We find that the classical action is not proportional to the area of the triangle determined by the branes intersection points since the solution is not holomorphic. Phenomenologically this means that the Yukawa couplings for these supersymmetric configurations on non-factorized tori are suppressed with respect to the factorized case.}, archivePrefix = {arXiv}, eprint = {1512.07920}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/pesando_2016_towards_a_fully_stringy_computation_of_yukawa_couplings_on_non_factorized_tori.pdf} } @article{Petersen:1989:CovariantSuperreggeonCalculus, title = {Covariant Super-Reggeon Calculus for Superstrings}, author = {Petersen, Jens L. and Sidenius, J. R. and Tollsten, A. K.}, date = {1989}, journaltitle = {Nuclear Physics B}, shortjournal = {Nuclear Physics B}, volume = {317}, pages = {109--146}, issn = {05503213}, doi = {10/bpfrkw}, keywords = {archived}, langid = {english}, number = {1} } @article{Polchinski:1995:DirichletBranesRamondRamond, title = {Dirichlet Branes and {{Ramond}}-{{Ramond}} Charges}, author = {Polchinski, Joseph}, date = {1995}, journaltitle = {Physical Review Letters}, volume = {75}, pages = {4724--4727}, issn = {00319007}, doi = {10/bxcwrv}, abstract = {We show that Dirichlet-branes, extended objects defined by mixed Dirichlet-Neumann boundary conditions in string theory, break half of the supersymmetries of the type∼II superstring and carry a complete set of electric and magnetic Ramond-Ramond charges. We also find that the product of the electric and magnetic charges is a single Dirac unit, and that the quantum of charge takes the value required by string duality. This is strong evidence that the Dirchlet-branes are intrinsic to type II string theory and are the Ramond-Ramond sources required by string duality. We also note the existence of a previously overlooked 9-form potential in the IIa string, which gives rise to an effective cosmological constant of undetermined magnitude.}, archivePrefix = {arXiv}, eprint = {hep-th/9510017}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/polchinski_1995_dirichlet_branes_and_ramond-ramond_charges.pdf}, number = {26} } @article{Polchinski:1996:TASILecturesDBranes, title = {{{TASI Lectures}} on {{D}}-{{Branes}}}, author = {Polchinski, Joseph}, date = {1996}, journaltitle = {New Frontiers in Fields and Strings}, pages = {75--136}, abstract = {This is an introduction to the properties of D-branes, topological defects in string theory on which string endpoints can live. D-branes provide a simple description of various nonperturbative objects required by string duality, and give new insight into the quantum mechanics of black holes and the nature of spacetime at the shortest distances. The first two thirds of these lectures closely follow the earlier ITP lectures hep-th/9602052, written with S. Chaudhuri and C. Johnson. The final third includes more extensive applications to string duality.}, archivePrefix = {arXiv}, eprint = {hep-th/9611050}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/polchinski_1996_tasi_lectures_on_d-branes.pdf} } @book{Polchinski:1998:StringTheoryIntroduction, title = {String {{Theory}}. {{An}} Introduction to the Bosonic String.}, author = {Polchinski, Joseph}, date = {1998}, volume = {1}, publisher = {{Cambridge University Press}}, url = {https://www.cambridge.org/academic/subjects/physics/theoretical-physics-and-mathematical-physics/string-theory-volume-1}, file = {/home/riccardo/.local/share/zotero/files/polchinski_1998_string_theory.pdf}, isbn = {978-0-521-67227-6}, keywords = {archived} } @book{Polchinski:1998:StringTheorySuperstring, title = {String {{Theory}}. {{Superstring}} Theory and Beyond.}, author = {Polchinski, Joseph}, date = {1998}, volume = {2}, publisher = {{Cambridge University Press}}, url = {https://www.cambridge.org/academic/subjects/physics/theoretical-physics-and-mathematical-physics/string-theory-volume-2}, file = {/home/riccardo/.local/share/zotero/files/polchinski_1998_string_theory2.pdf}, isbn = {978-0-521-63304-8}, keywords = {archived} } @article{Polyakov:1981:QuantumGeometryBosonic, title = {Quantum Geometry of Bosonic Strings}, author = {Polyakov, Alexander M.}, date = {1981}, journaltitle = {Physics Letters B}, shortjournal = {Physics Letters B}, volume = {103}, pages = {207--210}, issn = {03702693}, doi = {10/cq538n}, file = {/home/riccardo/.local/share/zotero/files/polyakov_1981_quantum_geometry_of_bosonic_strings2.pdf}, keywords = {archived}, langid = {english}, number = {3} } @article{Quinlan:1986:InductionDecisionTrees, title = {Induction of Decision Trees}, author = {Quinlan, John R.}, date = {1986}, journaltitle = {Machine learning}, shortjournal = {Mach Learn}, volume = {1}, pages = {81--106}, issn = {1573-0565}, doi = {10/ctd6mv}, abstract = {The technology for building knowledge-based systems by inductive inference from examples has been demonstrated successfully in several practical applications. This paper summarizes an approach to synthesizing decision trees that has been used in a variety of systems, and it describes one such system, ID3, in detail. Results from recent studies show ways in which the methodology can be modified to deal with information that is noisy and/or incomplete. A reported shortcoming of the basic algorithm is discussed and two means of overcoming it are compared. The paper concludes with illustrations of current research directions.}, file = {/home/riccardo/.local/share/zotero/files/quinlan_1986_induction_of_decision_trees.pdf}, langid = {english}, number = {1} } @online{Rezende:2014:StochasticBackpropagationApproximate, title = {Stochastic {{Backpropagation}} and {{Approximate Inference}} in {{Deep Generative Models}}}, author = {Rezende, Danilo Jimenez and Mohamed, Shakir and Wierstra, Daan}, date = {2014}, abstract = {We marry ideas from deep neural networks and approximate Bayesian inference to derive a generalised class of deep, directed generative models, endowed with a new algorithm for scalable inference and learning. Our algorithm introduces a recognition model to represent approximate posterior distributions, and that acts as a stochastic encoder of the data. We develop stochastic back-propagation -- rules for back-propagation through stochastic variables -- and use this to develop an algorithm that allows for joint optimisation of the parameters of both the generative and recognition model. We demonstrate on several real-world data sets that the model generates realistic samples, provides accurate imputations of missing data and is a useful tool for high-dimensional data visualisation.}, archivePrefix = {arXiv}, eprint = {1401.4082}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/rezende_et_al_2014_stochastic_backpropagation_and_approximate_inference_in_deep_generative_models2.pdf;/home/riccardo/.local/share/zotero/storage/HKC6H5VK/1401.html} } @article{Rudolph:1994:ConvergenceAnalysisCanonical, title = {Convergence Analysis of Canonical Genetic Algorithms}, author = {Rudolph, Günter}, date = {1994}, journaltitle = {IEEE transactions on neural networks}, volume = {5}, pages = {96--101}, doi = {10/fw8z8k}, file = {/home/riccardo/.local/share/zotero/files/rudolph_1994_convergence_analysis_of_canonical_genetic_algorithms3.pdf}, number = {1} } @article{Ruehle:2017:EvolvingNeuralNetworks, title = {Evolving Neural Networks with Genetic Algorithms to Study the String Landscape}, author = {Ruehle, Fabian}, date = {2017}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2017}, pages = {38}, issn = {1029-8479}, doi = {10/gbss9c}, archivePrefix = {arXiv}, eprint = {1706.07024}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/ruehle_2017_evolving_neural_networks_with_genetic_algorithms_to_study_the_string_landscape5.pdf}, langid = {english}, number = {8} } @article{Ruehle:2020:DataScienceApplications, title = {Data Science Applications to String Theory}, author = {Ruehle, Fabian}, date = {2020}, journaltitle = {Physics Reports}, shortjournal = {Physics Reports}, volume = {839}, pages = {1--117}, issn = {03701573}, doi = {10/ggwkvm}, file = {/home/riccardo/.local/share/zotero/files/ruehle_2020_data_science_applications_to_string_theory5.pdf}, keywords = {archived}, langid = {english} } @article{Rumelhart:1986:LearningRepresentationsBackpropagating, title = {Learning Representations by Back-Propagating Errors}, author = {Rumelhart, David E. and Hinton, Geoffrey E. and Williams, Ronald J.}, date = {1986}, volume = {323}, pages = {533--536}, doi = {10/cvjdpk}, file = {/home/riccardo/.local/share/zotero/files/rumelhart_et_al_1986_learning_representations_by_back-propagating_errors2.pdf}, number = {6088} } @inproceedings{Scarselli:2004:GraphicalbasedLearningEnvironments, title = {Graphical-Based Learning Environments for Pattern Recognition}, booktitle = {Joint {{IAPR}} International Workshops on Statistical Techniques in Pattern Recognition ({{SPR}}) and Structural and Syntactic Pattern Recognition ({{SSPR}})}, author = {Scarselli, Franco and Tsoi, Ah Chung and Gori, Marco and Hagenbuchner, Markus}, date = {2004}, pages = {42--56}, doi = {10/dtgbgk}, file = {/home/riccardo/.local/share/zotero/files/scarselli_et_al_2004_graphical-based_learning_environments_for_pattern_recognition3.pdf}, isbn = {978-3-540-22570-6 978-3-540-27868-9} } @article{Sciuto:1969:GeneralVertexFunction, title = {The General Vertex Function in Dual Resonance Models}, author = {Sciuto, Stefano}, date = {1969}, journaltitle = {Lettere al Nuovo Cimento}, shortjournal = {Lett. Nuovo Cimento}, volume = {2}, pages = {411--418}, issn = {0375-930X, 1827-613X}, doi = {10/drsft8}, file = {/home/riccardo/.local/share/zotero/files/sciuto_1969_the_general_vertex_function_in_dual_resonance_models5.pdf}, langid = {english}, number = {9} } @article{Shahriari:2015:TakingHumanOut, title = {Taking the Human out of the Loop: {{A}} Review of {{Bayesian}} Optimization}, author = {Shahriari, Bobak and Swersky, Kevin and Wang, Ziyu and Adams, Ryan P and De Freitas, Nando}, date = {2015}, journaltitle = {Proceedings of the IEEE}, volume = {104}, pages = {148--175}, doi = {10/f75n9c}, file = {/home/riccardo/.local/share/zotero/files/shahriari_et_al_2015_taking_the_human_out_of_the_loop.pdf}, number = {1} } @article{Sheikh-Jabbari:1998:ClassificationDifferentBranes, title = {Classification of {{Different Branes}} at {{Angles}}}, author = {Sheikh-Jabbari, Mohammad M.}, date = {1998}, journaltitle = {Physics Letters B}, shortjournal = {Physics Letters B}, volume = {420}, pages = {279--284}, issn = {03702693}, doi = {10/dbhwc6}, abstract = {In this paper, we consider two D-branes rotated with respect to each other, and argue that in this way one can find brane configurations preserving \$\{1 \textbackslash f 16\}\$ of SUSY. Also we classify different brane configurations preserving \$\{1 \textbackslash f 2\}\$, \$\{1 \textbackslash f 4\}\$, \$\{3 \textbackslash f 16\}\$,\$\{1 \textbackslash f 8\}\$, \$\{1 \textbackslash f 16\}\$ of SUSY.}, archivePrefix = {arXiv}, eprint = {hep-th/9710121}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/sheikh_jabbari_1998_classification_of_different_branes_at_angles.pdf;/home/riccardo/.local/share/zotero/files/sheikh-jabbari_1998_classification_of_different_branes_at_angles.pdf}, number = {3-4} } @book{Skiena:2017:DataScienceDesign, title = {The Data Science Design Manual}, author = {Skiena, Steven S.}, date = {2017}, publisher = {{Springer}}, url = {https://link.springer.com/book/10.1007/978-3-319-55444-0}, file = {/home/riccardo/.local/share/zotero/files/skiena_2017_the_data_science_design_manual.pdf}, isbn = {978-3-319-55444-0} } @inproceedings{Snoek:2012:PracticalBayesianOptimization, title = {Practical Bayesian Optimization of Machine Learning Algorithms}, booktitle = {Advances in Neural Information Processing Systems}, author = {Snoek, Jasper and Larochelle, Hugo and Adams, Ryan P.}, date = {2012}, pages = {2951--2959} } @article{Soldate:1987:PartialwaveUnitarityClosedstring, title = {Partial-Wave Unitarity and Closed-String Amplitudes}, author = {Soldate, Mark}, date = {1987}, journaltitle = {Physics Letters B}, shortjournal = {Physics Letters B}, volume = {186}, pages = {321--327}, issn = {03702693}, doi = {10/dnd5gz}, keywords = {archived}, langid = {english}, number = {3-4} } @article{Srivastava:2014:DropoutSimpleWay, title = {Dropout: {{A Simple Way}} to {{Prevent Neural Networks}} from {{Overfitting}}}, shorttitle = {Dropout}, author = {Srivastava, Nitish and Hinton, Geoffrey and Krizhevsky, Alex and Sutskever, Ilya and Salakhutdinov, Ruslan}, date = {2014}, journaltitle = {Journal of Machine Learning Research}, volume = {15}, pages = {1929--1958}, url = {http://jmlr.org/papers/v15/srivastava14a.html}, file = {/home/riccardo/.local/share/zotero/files/srivastava_et_al_2014_dropout.pdf;/home/riccardo/.local/share/zotero/files/srivastava_et_al_2014_dropout2.pdf} } @article{Stieberger:1992:YukawaCouplingsBosonic, title = {Yukawa {{Couplings}} for {{Bosonic Z}}{{{\textsubscript{N}}}} {{Orbifolds}}: {{Their Moduli}} and {{Twisted Sector Dependence}}}, shorttitle = {Yukawa {{Couplings}} for {{Bosonic}} \${{Z}}\_{{N}}\$ {{Orbifolds}}}, author = {Stieberger, Stephan and Jungnickel, Dirk-U. and Lauer, Juergen and Spaliński, Michał}, date = {1992}, journaltitle = {Modern Physics Letters A}, shortjournal = {Mod. Phys. Lett. A}, volume = {07}, pages = {3059--3070}, issn = {0217-7323, 1793-6632}, doi = {10/d9jgv3}, abstract = {The three point correlation functions with twist fields are determined for bosonic \$Z\_N\$ orbifolds. Both the choice of the modular background (compatible with the twist) and of the (higher) twisted sectors involved are fully general. We point out a necessary restriction on the set of instantons contributing to twist field correlation functions not obtained in previous calculations. Our results show that the theory is target space duality invariant.}, archivePrefix = {arXiv}, eprint = {hep-th/9204037}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/stieberger_et_al_1992_yukawa_couplings_for_bosonic_zn_orbifolds.pdf}, number = {33} } @online{Susskind:2003:AnthropicLandscapeString, title = {The {{Anthropic Landscape}} of {{String Theory}}}, author = {Susskind, Leonard}, date = {2003}, abstract = {In this lecture I make some educated guesses, about the landscape of string theory vacua. Based on the recent work of a number of authors, it seems plausible that the lanscape is unimaginably large and diverse. Whether we like it or not, this is the kind of behavior that gives credence to the Anthropic Principle. I discuss the theoretical and conceptual issues that arise in developing a cosmology based on the diversity of environments implicit in string theory.}, archivePrefix = {arXiv}, eprint = {hep-th/0302219}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/susskind_2003_the_anthropic_landscape_of_string_theory.pdf} } @inproceedings{Szegedy:2015:GoingDeeperConvolutions, title = {Going Deeper with Convolutions}, booktitle = {Proceedings of the {{IEEE}} Conference on Computer Vision and Pattern Recognition}, author = {Szegedy, Christian and Liu, Wei and Jia, Yangqing and Sermanet, Pierre and Reed, Scott and Anguelov, Dragomir and Erhan, Dumitru and Vanhoucke, Vincent and Rabinovich, Andrew}, date = {2015}, pages = {1--9}, abstract = {We propose a deep convolutional neural network architecture codenamed "Inception", which was responsible for setting the new state of the art for classification and detection in the ImageNet Large-Scale Visual Recognition Challenge 2014 (ILSVRC 2014). The main hallmark of this architecture is the improved utilization of the computing resources inside the network. This was achieved by a carefully crafted design that allows for increasing the depth and width of the network while keeping the computational budget constant. To optimize quality, the architectural decisions were based on the Hebbian principle and the intuition of multi-scale processing. One particular incarnation used in our submission for ILSVRC 2014 is called GoogLeNet, a 22 layers deep network, the quality of which is assessed in the context of classification and detection.}, archivePrefix = {arXiv}, eprint = {1409.4842}, eprinttype = {arxiv} } @online{Szegedy:2016:Inceptionv4InceptionresnetImpact, title = {Inception-v4, Inception-Resnet and the Impact of Residual Connections on Learning}, author = {Szegedy, Christian and Ioffe, Sergey and Vanhoucke, Vincent and Alemi, Alex}, date = {2016}, archivePrefix = {arXiv}, eprint = {1602.07261}, eprinttype = {arxiv} } @inproceedings{Szegedy:2016:RethinkingInceptionArchitecture, title = {Rethinking the Inception Architecture for Computer Vision}, booktitle = {Proceedings of the {{IEEE}} Conference on Computer Vision and Pattern Recognition}, author = {Szegedy, Christian and Vanhoucke, Vincent and Ioffe, Sergey and Shlens, Jon and Wojna, Zbigniew}, date = {2016}, pages = {2818--2826}, archivePrefix = {arXiv}, eprint = {1512.00567}, eprinttype = {arxiv} } @article{Taylor:2015:FtheoryGeometryMost, title = {The {{F}}-Theory Geometry with Most Flux Vacua}, author = {Taylor, Washington and Wang, Yi-Nan}, date = {2015}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2015}, pages = {1--21}, issn = {1029-8479}, doi = {10/ghf4n7}, archivePrefix = {arXiv}, eprint = {1511.03209}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/taylor_wang_2015_the_f-theory_geometry_with_most_flux_vacua2.pdf}, langid = {english}, number = {12} } @article{Taylor:2018:ScanningSkeleton4D, title = {Scanning the Skeleton of the {{4D F}}-Theory Landscape}, author = {Taylor, Washington and Wang, Yi-Nan}, date = {2018}, journaltitle = {Journal of High Energy Physics}, shortjournal = {J. High Energ. Phys.}, volume = {2018}, pages = {111}, issn = {1029-8479}, doi = {10/ghf4n8}, archivePrefix = {arXiv}, eprint = {1710.11235}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/taylor_wang_2018_scanning_the_skeleton_of_the_4d_f-theory_landscape2.pdf}, langid = {english}, number = {1} } @incollection{Theodoridis:2009:NonlinearClassifiers, title = {Nonlinear {{Classifiers}}}, booktitle = {Pattern Recognition (Fourth Edition)}, author = {Theodoridis, Sergios and Koutroumbas, Konstantinos}, editor = {Theodoridis, Sergios and Koutroumbas, Konstantinos}, date = {2009}, edition = {Fourth Edition}, pages = {151--260}, publisher = {{Academic Press}}, location = {{Boston}}, url = {http://www.sciencedirect.com/science/article/pii/B9781597492720500062}, isbn = {978-1-59749-272-0} } @article{tHooft:1987:GravitonDominanceUltrahighenergy, title = {Graviton Dominance in Ultra-High-Energy Scattering}, author = {'t Hooft, Gerardus}, date = {1987}, journaltitle = {Physics Letters B}, volume = {198}, pages = {61--63}, doi = {10/fkzsbw}, abstract = {The scattering process of two pointlike particles at CM energies in the order of Planck units or beyond, is very well calculable using known laws of physics, because graviton exchange dominates over all other interaction processes. At energies much higher than the Planck mass black hole production sets in, accompanied by coherent emission of real gravitons.}, file = {/home/riccardo/.local/share/zotero/files/'t_hooft_1987_graviton_dominance_in_ultra-high-energy_scattering.pdf}, number = {1}, options = {useprefix=true} } @inproceedings{Thrun:1996:LearningNthThing, title = {Is Learning the N-Th Thing Any Easier than Learning the First?}, booktitle = {Advances in Neural Information Processing Systems}, author = {Thrun, Sebastian}, date = {1996}, pages = {640--646} } @inproceedings{Tompson:2015:EfficientObjectLocalization, title = {Efficient {{Object Localization Using Convolutional Networks}}}, author = {Tompson, Jonathan and Goroshin, Ross and Jain, Arjun and LeCun, Yann and Bregler, Christopher}, date = {2015}, doi = {10/ggtmv2}, abstract = {Recent state-of-the-art performance on human-body pose estimation has been achieved with Deep Convolutional Networks (ConvNets). Traditional ConvNet architectures include pooling and sub-sampling layers which reduce computational requirements, introduce invariance and prevent over-training. These benefits of pooling come at the cost of reduced localization accuracy. We introduce a novel architecture which includes an efficient `position refinement' model that is trained to estimate the joint offset location within a small region of the image. This refinement model is jointly trained in cascade with a state-of-the-art ConvNet model to achieve improved accuracy in human joint location estimation. We show that the variance of our detector approaches the variance of human annotations on the FLIC dataset and outperforms all existing approaches on the MPII-human-pose dataset.}, archivePrefix = {arXiv}, eprint = {1411.4280}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/tompson_et_al_2015_efficient_object_localization_using_convolutional_networks.pdf} } @article{Uranga:2003:ChiralFourdimensionalString, title = {Chiral Four-Dimensional String Compactifications with Intersecting {{D}}-Branes}, author = {Uranga, Angel M.}, date = {2003}, journaltitle = {Classical and Quantum Gravity}, shortjournal = {Class. Quantum Grav.}, volume = {20}, pages = {S373-S393}, issn = {0264-9381, 1361-6382}, doi = {10/cr8vtd}, archivePrefix = {arXiv}, eprint = {hep-th/0301032}, eprinttype = {arxiv}, file = {/home/riccardo/.local/share/zotero/files/uranga_2003_chiral_four-dimensional_string_compactifications_with_intersecting_d-branes.pdf}, number = {12} } @article{Uranga:2005:TASILecturesString, title = {{{TASI}} Lectures on {{String Compactification}}, {{Model Building}}, and {{Fluxes}}}, author = {Uranga, Angel M.}, date = {2005}, url = {http://cds.cern.ch/record/933469/files/cer-002601054.pdf}, abstract = {We review the construction of chiral four-dimensional compactifications of string theory with different systems of D-branes, including type IIA intersecting D6-branes and type IIB magnetised D-branes. Such models lead to four-dimensional theories with non-abelian gauge interactions and charged chiral fermions. We discuss the application of these techniques to building of models with spectrum as close as possible to the Standard Model, and review their main phenomenological properties. We finally describe how to implement the tecniques to construct these models in flux compactifications, leading to models with realistic gauge sectors, moduli stabilization and supersymmetry breaking soft terms.}, file = {/home/riccardo/.local/share/zotero/files/uranga_2005_tasi_lectures_on_string_compactification,_model_building,_and_fluxes.pdf} } @article{vanderWalt:2011:NumPyArrayStructure, title = {The {{NumPy}} Array: {{A}} Structure for Efficient Numerical Computation}, author = {van der Walt, Stèfan and Colbert, Chris and Varoquaux, Gaël}, date = {2011}, journaltitle = {Computing in Science Engineering}, volume = {13}, pages = {22--30}, doi = {10/d8k4p9}, file = {/home/riccardo/.local/share/zotero/files/der_walt_et_al_2011_the_numpy_array.pdf}, number = {2}, options = {useprefix=true} } @software{Waskom:2020:MwaskomSeabornV0, title = {Mwaskom/Seaborn: V0.11.0 ({{September}} 2020)}, author = {Waskom, Michael and Botvinnik, Olga and Gelbart, Maoz and Ostblom, Joel and Hobson, Paul and Lukauskas, Saulius and Gemperline, David C and Augspurger, Tom and Halchenko, Yaroslav and Warmenhoven, Jordi and Cole, John B. and de Ruiter, Julian and Vanderplas, Jake and Hoyer, Stephan and Pye, Cameron and Miles, Alistair and Swain, Corban and Meyer, Kyle and Martin, Marcel and Bachant, Pete and Quintero, Eric and Kunter, Gero and Villalba, Santi and {Brian} and Fitzgerald, Clark and Evans, C.G. and Williams, Mike Lee and O'Kane, Drew and Yarkoni, Tal and Brunner, Thomas}, date = {2020}, url = {https://zenodo.org/record/4019146}, keywords = {archived}, options = {useprefix=true}, organization = {{Zenodo}}, version = {v0.11.0} } @inproceedings{WesMcKinney:2010:DataStructuresStatistical, title = {Data {{Structures}} for {{Statistical Computing}} in {{Python}}}, booktitle = {Proceedings of the 9th {{Python}} in {{Science Conference}}}, author = {{Wes McKinney}}, editor = {van der Walt, Stéfan and {Jarrod Millman}}, date = {2010}, pages = {56--61}, doi = {10/ggr6q3}, file = {/home/riccardo/.local/share/zotero/files/wes_mckinney_2010_data_structures_for_statistical_computing_in_python3.pdf}, options = {useprefix=true} } @article{Wittkowski:1986:ClassificationRegressionTrees, title = {Classification and Regression Trees - l. {{Breiman}}, j. {{H}}. {{Friedman}}, r. {{A}}. {{Olshen}} and c. {{J}}. {{Stone}}.}, author = {Wittkowski, Knut}, date = {1986}, journaltitle = {Metrika}, volume = {33}, pages = {128--128}, issn = {0026-1335}, url = {http://eudml.org/doc/176041} } @article{Yau:1977:CalabiConjectureNew, title = {Calabi's Conjecture and Some New Results in Algebraic Geometry}, author = {Yau, Shing-Tung}, date = {1977}, journaltitle = {Proceedings of the National Academy of Sciences}, shortjournal = {Proceedings of the National Academy of Sciences}, volume = {74}, pages = {1798--1799}, issn = {0027-8424, 1091-6490}, doi = {10/cbzd2h}, file = {/home/riccardo/.local/share/zotero/files/yau_1977_calabi's_conjecture_and_some_new_results_in_algebraic_geometry2.pdf}, langid = {english}, number = {5} } @book{Zheng:2018:FeatureEngineeringMachine, title = {Feature Engineering for Machine Learning: Principles and Techniques for Data Scientists}, author = {Zheng, Alice and Casari, Amanda}, date = {2018}, publisher = {{O'Reilly Media, Inc.}}, url = {https://www.oreilly.com/library/view/feature-engineering-for/9781491953235}, file = {/home/riccardo/.local/share/zotero/files/zheng_casari_2018_feature_engineering_for_machine_learning.pdf}, isbn = {978-1-4919-5324-2} } @inproceedings{Zhu:2017:UnpairedImagetoimageTranslation, title = {Unpaired Image-to-Image Translation Using Cycle-Consistent Adversarial Networks}, booktitle = {Proceedings of the {{IEEE}} International Conference on Computer Vision}, author = {Zhu, Jun-Yan and Park, Taesung and Isola, Phillip and Efros, Alexei A}, date = {2017}, pages = {2223--2232} } @book{Zwiebach:2009:FirstCourseString, title = {A {{First Course}} in {{String Theory}}}, author = {Zwiebach, Barton}, date = {2009}, publisher = {{Cambridge University Press}}, url = {https://www.cambridge.org/academic/subjects/physics/theoretical-physics-and-mathematical-physics/first-course-string-theory-2nd-edition}, file = {/home/riccardo/.local/share/zotero/files/zwiebach_a_first_course_in_string_theory.pdf}, isbn = {978-0-521-88032-9}, langid = {english} }