BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Andreas Schachner (LMU Munich & Cornell) DTSTART:20250313T070000Z DTEND:20250313T080000Z DTSTAMP:20260404T095030Z UID:HETnyuad/1 DESCRIPTION:Title: Candidate de Sitter vacua in string theory\nby Andreas Schachn er (LMU Munich & Cornell) as part of High Energy Theory NYU Abu Dhabi\n\nL ecture held in NYU Abu Dhabi ERB C1-045.\n\nAbstract\nWe construct compa ctifications of type IIB string theory that yield\, at leading order in th e $\\alpha^\\prime$ and $g_s$ expansions\, de Sitter vacua of the form env isioned by Kachru\, Kallosh\, Linde\, and Trivedi. We specify explicit Ca labi-Yau orientifolds and quantized fluxes for which we derive the four-di mensional effective supergravity theories\, incorporating the exact flux s uperpotential\, the nonperturbative superpotential from Euclidean D3-brane s\, and the K\\"ahler potential at tree level in the string loop expansio n but to all orders in $\\alpha'$. Each example includes a Klebanov-Strass ler throat region containing a single anti-D3-brane\, whose supersymmetry- breaking energy\, computed at leading order in $\\alpha'$\, causes an upl ift to a metastable de Sitter vacuum in which all moduli are stabilized. F inding vacua that demonstrably survive subleading corrections\, and in whi ch the quantization conditions are completely understood\, is an important open problem for which this work has prepared the foundations.\n LOCATION:https://stable.researchseminars.org/talk/HETnyuad/1/ END:VEVENT BEGIN:VEVENT SUMMARY:Luis E. Ibáñez (IFT Madrid\, UAM-CSIC) DTSTART:20250409T070000Z DTEND:20250409T080000Z DTSTAMP:20260404T095030Z UID:HETnyuad/2 DESCRIPTION:Title: Yukawas and Neutrinos at Infinite Distance\nby Luis E. Ibáñe z (IFT Madrid\, UAM-CSIC) as part of High Energy Theory NYU Abu Dhabi\n\nL ecture held in A2-127 NYU Abu Dhabi Computational Research Building.\n\nAb stract\nWe study limits of vanishing Yukawa couplings of 4d chiral matter fields in Quantum Gravity\, using as a laboratory type IIA orientifolds wi th D6-branes. In these theories chiral fermions arise at brane intersecti ons\, where an infinite tower of charged particles are localized. We show that in the limit Y → 0 some of these towers become asymptotically massl ess\, while at the same time the kinetic term of some chiral fields become s singular and at least two extra dimensions decompactify. Moreover\, in t his limit some of the gauge couplings associated to the Yukawa vanish. We apply these results to the case of Dirac neutrino masses\, which require t iny Yukawa couplings. We find Dirac neutrino masses of the form m_v ≃ g_ ν ⟨H⟩\, with g_ν the gauge coupling of the massive anomalous U (1) u nder which the right-handed neutrinos are charged\, and which should be in the range g_ν ≃ 10^−13 to reproduce neutrino data. We also describe the difficulties in obtaining appropriate tiny neutrino Yukawas in the ca ses of a single or more than two large dimensions. Thus the case with two large dimensions seems to be quite unique in order to get Dirac neutrino m asses.\n LOCATION:https://stable.researchseminars.org/talk/HETnyuad/2/ END:VEVENT BEGIN:VEVENT SUMMARY:Michele Cicoli (Bologna University) DTSTART:20250416T070000Z DTEND:20250416T080000Z DTSTAMP:20260404T095030Z UID:HETnyuad/3 DESCRIPTION:Title: Recent progress on inflation and dark energy from string theory\nby Michele Cicoli (Bologna University) as part of High Energy Theory NY U Abu Dhabi\n\nLecture held in C1-120 NYU Abu Dhabi Experimental Research Building.\n\nAbstract\nA general overview on recent progress in understand ing accelerating cosmologies in string theory is presented.\n LOCATION:https://stable.researchseminars.org/talk/HETnyuad/3/ END:VEVENT BEGIN:VEVENT SUMMARY:Onkar Parrikar (TIFR Mumbai) DTSTART:20250429T070000Z DTEND:20250429T080000Z DTSTAMP:20260404T095030Z UID:HETnyuad/4 DESCRIPTION:Title: Wigner negativity\, random matrices and gravity\nby Onkar Parr ikar (TIFR Mumbai) as part of High Energy Theory NYU Abu Dhabi\n\nLecture held in C1-120 NYU Abu Dhabi Experimental Research Building.\n\nAbstract\n Given a choice of an ordered\, orthonormal basis for a finite D-dimensiona l Hilbert space\, one can define a discrete version of the Wigner function — a quasi-probability distribution which represents any state in the Hi lbert space on a discrete phase space. The Wigner function can\, in genera l\, take on negative values\, and the amount of negativity in the Wigner f unction gives a measure of the complexity of simulating the quantum state on a classical computer. In this talk\, we study the growth of Wigner nega tivity for a generic initial state under time evolution with chaotic Hamil tonians. We first give a perturbative argument to show that the Krylov bas is minimizes the early time growth of Wigner negativity in the large D lim it. Using tools from random matrix theory\, we then show that for a generi c choice of basis\, the Wigner negativity becomes exponentially large in a n O(1) amount of time evolution. On the other hand\, in the Krylov basis\, the negativity grows gradually (i.e.\, as a power law) for an exponential amount of time\, before saturating close to its maximum value. We take th is as evidence that the Krylov basis is ideally suited for a dual\, semi-c lassical description of chaotic quantum dynamics at large D. We discuss co nnections with the emergence of the dual gravitational description in AdS/ CFT.\n LOCATION:https://stable.researchseminars.org/talk/HETnyuad/4/ END:VEVENT BEGIN:VEVENT SUMMARY:Norihiro Iizuka (National Tsing Hua University & YITP Kyoto) DTSTART:20250423T070000Z DTEND:20250423T080000Z DTSTAMP:20260404T095030Z UID:HETnyuad/5 DESCRIPTION:Title: Genuine multi-entropy and holography\nby Norihiro Iizuka (Nati onal Tsing Hua University & YITP Kyoto) as part of High Energy Theory NYU Abu Dhabi\n\nLecture held in C1-120 NYU Abu Dhabi Experimental Research Bu ilding.\n\nAbstract\nIs bipartite entanglement sufficient for holography? Through the analysis of the Markov gap\, it is known that the answer is no . In this talk\, we give a new perspective on this issue from a different angle using `genuine multi-entropy'.\n LOCATION:https://stable.researchseminars.org/talk/HETnyuad/5/ END:VEVENT BEGIN:VEVENT SUMMARY:Anshuman Maharana (Harish-Chandra Research Insitute) DTSTART:20250919T120000Z DTEND:20250919T130000Z DTSTAMP:20260404T095030Z UID:HETnyuad/6 DESCRIPTION:Title: High Temp. Strings and Gravitational Waves\nby Anshuman Mahara na (Harish-Chandra Research Insitute) as part of High Energy Theory NYU Ab u Dhabi\n\nLecture held in NYU Abu Dhabi Computational Research Building.\ nAbstract: TBA\n LOCATION:https://stable.researchseminars.org/talk/HETnyuad/6/ END:VEVENT BEGIN:VEVENT SUMMARY:Joseph Patrick Conlon (University of Oxford) DTSTART:20250930T100000Z DTEND:20250930T110000Z DTSTAMP:20260404T095030Z UID:HETnyuad/7 DESCRIPTION:Title: Cosmic superstrings in the early universe\nby Joseph Patrick C onlon (University of Oxford) as part of High Energy Theory NYU Abu Dhabi\n \nLecture held in NYU Abu Dhabi Computational Research Building.\n\nAbstra ct\nThe superstrings of string theory could — possibly — exist as macr oscopic physical strings that stretch throughout the universe. I review th e physics of cosmic superstrings and describe recent results on the behavi our of superstrings where the tension varies in time. Such behaviour is co mmon in string theory models of the early universe. In particular\, there exists an attractor solution with three-quarters of the energy density of the universe in the form of superstrings\, which could have been realised in the early universe between the epochs of inflation and nucleosynthesis. \n LOCATION:https://stable.researchseminars.org/talk/HETnyuad/7/ END:VEVENT BEGIN:VEVENT SUMMARY:J. Alberto Vázquez (Universidad Nacional Autonoma de Mexico) DTSTART:20251112T130000Z DTEND:20251112T140000Z DTSTAMP:20260404T095030Z UID:HETnyuad/8 DESCRIPTION:Title: Dark Problems of Modern Cosmology\nby J. Alberto Vázquez (Uni versidad Nacional Autonoma de Mexico) as part of High Energy Theory NYU Ab u Dhabi\n\nLecture held in NYU Abu Dhabi Computational Research Building.\ n\nAbstract\nOne of the most challenging problems in modern cosmology is t he explanation of the current accelerated expansion of the universe. The search for the model and/or components that describe our current view of t he cosmos has driven to the creation of highly sophisticated experiments\, generating a vast amount of data. This context illustrates how contempor ary cosmology has entered a new stage where the immense avalanche of info rmation and the exponential advancement of technology play a crucial role. Therefore\, the main focus of this talk is to present how information al ong with AI algorithms contribute to the description of the dark energy\, leveraging their strengths in processing and analyzing large volumes of d ata.\n LOCATION:https://stable.researchseminars.org/talk/HETnyuad/8/ END:VEVENT BEGIN:VEVENT SUMMARY:Malcolm J Perry (DAMPT\, University of Cambridge) DTSTART:20251124T100000Z DTEND:20251124T120000Z DTSTAMP:20260404T095030Z UID:HETnyuad/9 DESCRIPTION:Title: Classical and Quantum Aspects of Black Holes Lecture 1/3\nby M alcolm J Perry (DAMPT\, University of Cambridge) as part of High Energy Th eory NYU Abu Dhabi\n\nLecture held in NYU Abu Dhabi Computational Research Building.\nAbstract: TBA\n LOCATION:https://stable.researchseminars.org/talk/HETnyuad/9/ END:VEVENT BEGIN:VEVENT SUMMARY:Malcolm J Perry (DAMPT\, University of Cambridge) DTSTART:20251127T100000Z DTEND:20251127T120000Z DTSTAMP:20260404T095030Z UID:HETnyuad/10 DESCRIPTION:Title: Classical and Quantum Aspects of Black Holes Lecture 2/3\nby Malcolm J Perry (DAMPT\, University of Cambridge) as part of High Energy T heory NYU Abu Dhabi\n\nLecture held in NYU Abu Dhabi Computational Researc h Building.\nAbstract: TBA\n LOCATION:https://stable.researchseminars.org/talk/HETnyuad/10/ END:VEVENT BEGIN:VEVENT SUMMARY:Malcolm J Perry (DAMPT\, University of Cambridge) DTSTART:20251128T103000Z DTEND:20251128T123000Z DTSTAMP:20260404T095030Z UID:HETnyuad/11 DESCRIPTION:Title: Classical and Quantum Aspects of Black Holes Lecture 3/3\nby Malcolm J Perry (DAMPT\, University of Cambridge) as part of High Energy T heory NYU Abu Dhabi\n\nLecture held in NYU Abu Dhabi Computational Researc h Building.\nAbstract: TBA\n LOCATION:https://stable.researchseminars.org/talk/HETnyuad/11/ END:VEVENT BEGIN:VEVENT SUMMARY:Alvaro Herráez (Max Planck Institute) DTSTART:20251126T120000Z DTEND:20251126T130000Z DTSTAMP:20260404T095030Z UID:HETnyuad/12 DESCRIPTION:Title: From the Double EFT Expansion to the Black Hole-Tower Corresponde nce: Towers of states in asymptotic regimes\nby Alvaro Herráez (Max P lanck Institute) as part of High Energy Theory NYU Abu Dhabi\n\nLecture he ld in NYU Abu Dhabi Computational Research Building.\n\nAbstract\nIn this talk we will explore the structure of EFTs and black holes within the con text of Quantum Gravity. Using string theory as a laboratory\, we argue th at any EFT describing Quantum Gravity should exhibit a double expansion fo r higher-curvature operators\, which includes terms suppressed with respec t to the Einstein-Hilbert term by either the mass of the lightest tower of states or by the Quantum Gravity cutoff\, which we identify as the specie s scale. We will then discuss the implications of this framework for the a symptotic behaviour of certain Wilson coefficients of higher-dimensional g ravitational operators\, revealing interesting connections with recent S-m atrix bootstrap results. Complementarily\, we will present how minimal bla ck holes can be used to understand such quantum gravity cutoff in asymptot ic regions of field space\, where their entropy appears to correspond to t hat of towers of states predicted by the Distance Conjecture. This provide s a generalization of the celebrated black hole-string correspondence. Fin ally\, we briefly present how these two approaches to the understanding o f the species scale fit together \, by discussing a particular example of BPS black hole in 4d N=2 from type IIA string theory compactified on a Cal abi-Yau threefold.\n LOCATION:https://stable.researchseminars.org/talk/HETnyuad/12/ END:VEVENT BEGIN:VEVENT SUMMARY:Ahmed Rakin Kamal (Masaryk University\, Brno\, Czech Republic) DTSTART:20260226T070000Z DTEND:20260226T080000Z DTSTAMP:20260404T095030Z UID:HETnyuad/13 DESCRIPTION:Title: Cosmological flux backgrounds in string theory\nby Ahmed Raki n Kamal (Masaryk University\, Brno\, Czech Republic) as part of High Energ y Theory NYU Abu Dhabi\n\nLecture held in NYU Abu Dhabi Computational Rese arch Building.\nAbstract: TBA\n LOCATION:https://stable.researchseminars.org/talk/HETnyuad/13/ END:VEVENT END:VCALENDAR