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SUMMARY:Andreas Schachner (LMU Munich & Cornell)
DTSTART:20250313T070000Z
DTEND:20250313T080000Z
DTSTAMP:20260422T213012Z
UID:HETnyuad/1
DESCRIPTION:Title: Candidate de Sitter vacua in string theory\nby Andreas Schachner (LMU
Munich & Cornell) as part of High Energy Theory NYU Abu Dhabi\n\nLecture
held in NYU Abu Dhabi ERB C1-045.\n\nAbstract\nWe construct compactifica
tions of type IIB string theory that yield\, at leading order in the $\\al
pha^\\prime$ and $g_s$ expansions\, de Sitter vacua of the form envisioned
by Kachru\, Kallosh\, Linde\, and Trivedi. We specify explicit Calabi-Ya
u orientifolds and quantized fluxes for which we derive the four-dimension
al effective supergravity theories\, incorporating the exact flux superpot
ential\, the nonperturbative superpotential from Euclidean D3-branes\, and
the K\\"ahler potential at tree level in the string loop expansion but t
o all orders in $\\alpha'$. Each example includes a Klebanov-Strassler thr
oat region containing a single anti-D3-brane\, whose supersymmetry-breakin
g energy\, computed at leading order in $\\alpha'$\, causes an uplift to
a metastable de Sitter vacuum in which all moduli are stabilized. Finding
vacua that demonstrably survive subleading corrections\, and in which the
quantization conditions are completely understood\, is an important open p
roblem for which this work has prepared the foundations.\n
LOCATION:https://researchseminars.org/talk/HETnyuad/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Luis E. Ibáñez (IFT Madrid\, UAM-CSIC)
DTSTART:20250409T070000Z
DTEND:20250409T080000Z
DTSTAMP:20260422T213012Z
UID:HETnyuad/2
DESCRIPTION:Title: Yukawas and Neutrinos at Infinite Distance\nby Luis E. Ibáñez (IFT
Madrid\, UAM-CSIC) as part of High Energy Theory NYU Abu Dhabi\n\nLecture
held in A2-127 NYU Abu Dhabi Computational Research Building.\n\nAbstract\
nWe study limits of vanishing Yukawa couplings of 4d chiral matter fields
in Quantum Gravity\, using as a laboratory type IIA orientifolds with D6-b
ranes. In these theories chiral fermions arise at brane intersections\, w
here an infinite tower of charged particles are localized. We show that in
the limit Y → 0 some of these towers become asymptotically massless\, w
hile at the same time the kinetic term of some chiral fields becomes singu
lar and at least two extra dimensions decompactify. Moreover\, in this lim
it some of the gauge couplings associated to the Yukawa vanish. We apply t
hese results to the case of Dirac neutrino masses\, which require tiny Yuk
awa 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) under wh
ich the right-handed neutrinos are charged\, and which should be in the ra
nge g_ν ≃ 10^−13 to reproduce neutrino data. We also describe the di
fficulties in obtaining appropriate tiny neutrino Yukawas in the cases of
a single or more than two large dimensions. Thus the case with two large d
imensions seems to be quite unique in order to get Dirac neutrino masses.\
n
LOCATION:https://researchseminars.org/talk/HETnyuad/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Michele Cicoli (Bologna University)
DTSTART:20250416T070000Z
DTEND:20250416T080000Z
DTSTAMP:20260422T213012Z
UID:HETnyuad/3
DESCRIPTION:Title: Recent progress on inflation and dark energy from string theory\nby M
ichele Cicoli (Bologna University) as part of High Energy Theory NYU Abu D
habi\n\nLecture held in C1-120 NYU Abu Dhabi Experimental Research Buildin
g.\n\nAbstract\nA general overview on recent progress in understanding acc
elerating cosmologies in string theory is presented.\n
LOCATION:https://researchseminars.org/talk/HETnyuad/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Onkar Parrikar (TIFR Mumbai)
DTSTART:20250429T070000Z
DTEND:20250429T080000Z
DTSTAMP:20260422T213012Z
UID:HETnyuad/4
DESCRIPTION:Title: Wigner negativity\, random matrices and gravity\nby Onkar Parrikar (T
IFR Mumbai) as part of High Energy Theory NYU Abu Dhabi\n\nLecture held in
C1-120 NYU Abu Dhabi Experimental Research Building.\n\nAbstract\nGiven a
choice of an ordered\, orthonormal basis for a finite D-dimensional Hilbe
rt space\, one can define a discrete version of the Wigner function — a
quasi-probability distribution which represents any state in the Hilbert s
pace on a discrete phase space. The Wigner function can\, in general\, tak
e on negative values\, and the amount of negativity in the Wigner function
gives a measure of the complexity of simulating the quantum state on a cl
assical computer. In this talk\, we study the growth of Wigner negativity
for a generic initial state under time evolution with chaotic Hamiltonians
. We first give a perturbative argument to show that the Krylov basis mini
mizes the early time growth of Wigner negativity in the large D limit. Usi
ng tools from random matrix theory\, we then show that for a generic choic
e of basis\, the Wigner negativity becomes exponentially large in an O(1)
amount of time evolution. On the other hand\, in the Krylov basis\, the ne
gativity grows gradually (i.e.\, as a power law) for an exponential amount
of time\, before saturating close to its maximum value. We take this as e
vidence that the Krylov basis is ideally suited for a dual\, semi-classica
l description of chaotic quantum dynamics at large D. We discuss connectio
ns with the emergence of the dual gravitational description in AdS/CFT.\n
LOCATION:https://researchseminars.org/talk/HETnyuad/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Norihiro Iizuka (National Tsing Hua University & YITP Kyoto)
DTSTART:20250423T070000Z
DTEND:20250423T080000Z
DTSTAMP:20260422T213012Z
UID:HETnyuad/5
DESCRIPTION:Title: Genuine multi-entropy and holography\nby Norihiro Iizuka (National Ts
ing Hua University & YITP Kyoto) as part of High Energy Theory NYU Abu Dha
bi\n\nLecture held in C1-120 NYU Abu Dhabi Experimental Research Building.
\n\nAbstract\nIs bipartite entanglement sufficient for holography? Through
the analysis of the Markov gap\, it is known that the answer is no. In th
is talk\, we give a new perspective on this issue from a different angle u
sing `genuine multi-entropy'.\n
LOCATION:https://researchseminars.org/talk/HETnyuad/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Anshuman Maharana (Harish-Chandra Research Insitute)
DTSTART:20250919T120000Z
DTEND:20250919T130000Z
DTSTAMP:20260422T213012Z
UID:HETnyuad/6
DESCRIPTION:Title: High Temp. Strings and Gravitational Waves\nby Anshuman Maharana (Har
ish-Chandra Research Insitute) as part of High Energy Theory NYU Abu Dhabi
\n\nLecture held in NYU Abu Dhabi Computational Research Building.\nAbstra
ct: TBA\n
LOCATION:https://researchseminars.org/talk/HETnyuad/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Joseph Patrick Conlon (University of Oxford)
DTSTART:20250930T100000Z
DTEND:20250930T110000Z
DTSTAMP:20260422T213012Z
UID:HETnyuad/7
DESCRIPTION:Title: Cosmic superstrings in the early universe\nby Joseph Patrick Conlon (
University of Oxford) as part of High Energy Theory NYU Abu Dhabi\n\nLectu
re held in NYU Abu Dhabi Computational Research Building.\n\nAbstract\nThe
superstrings of string theory could — possibly — exist as macroscopic
physical strings that stretch throughout the universe. I review the physi
cs of cosmic superstrings and describe recent results on the behaviour of
superstrings where the tension varies in time. Such behaviour is common in
string theory models of the early universe. In particular\, there exists
an attractor solution with three-quarters of the energy density of the uni
verse in the form of superstrings\, which could have been realised in the
early universe between the epochs of inflation and nucleosynthesis.\n
LOCATION:https://researchseminars.org/talk/HETnyuad/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:J. Alberto Vázquez (Universidad Nacional Autonoma de Mexico)
DTSTART:20251112T130000Z
DTEND:20251112T140000Z
DTSTAMP:20260422T213012Z
UID:HETnyuad/8
DESCRIPTION:Title: Dark Problems of Modern Cosmology\nby J. Alberto Vázquez (Universida
d Nacional Autonoma de Mexico) as part of High Energy Theory NYU Abu Dhabi
\n\nLecture held in NYU Abu Dhabi Computational Research Building.\n\nAbst
ract\nOne of the most challenging problems in modern cosmology is the expl
anation of the current accelerated expansion of the universe. The search
for the model and/or components that describe our current view of the cosm
os has driven to the creation of highly sophisticated experiments\, genera
ting a vast amount of data. This context illustrates how contemporary cos
mology has entered a new stage where the immense avalanche of information
and the exponential advancement of technology play a crucial role. Theref
ore\, the main focus of this talk is to present how information along wit
h AI algorithms contribute to the description of the dark energy\, levera
ging their strengths in processing and analyzing large volumes of data.\n
LOCATION:https://researchseminars.org/talk/HETnyuad/8/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Malcolm J Perry (DAMPT\, University of Cambridge)
DTSTART:20251124T100000Z
DTEND:20251124T120000Z
DTSTAMP:20260422T213012Z
UID:HETnyuad/9
DESCRIPTION:Title: Classical and Quantum Aspects of Black Holes Lecture 1/3\nby Malcolm
J Perry (DAMPT\, University of Cambridge) as part of High Energy Theory NY
U Abu Dhabi\n\nLecture held in NYU Abu Dhabi Computational Research Buildi
ng.\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/HETnyuad/9/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Malcolm J Perry (DAMPT\, University of Cambridge)
DTSTART:20251127T100000Z
DTEND:20251127T120000Z
DTSTAMP:20260422T213012Z
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 Theory N
YU Abu Dhabi\n\nLecture held in NYU Abu Dhabi Computational Research Build
ing.\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/HETnyuad/10/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Malcolm J Perry (DAMPT\, University of Cambridge)
DTSTART:20251128T103000Z
DTEND:20251128T123000Z
DTSTAMP:20260422T213012Z
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 Theory N
YU Abu Dhabi\n\nLecture held in NYU Abu Dhabi Computational Research Build
ing.\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/HETnyuad/11/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Alvaro Herráez (Max Planck Institute)
DTSTART:20251126T120000Z
DTEND:20251126T130000Z
DTSTAMP:20260422T213012Z
UID:HETnyuad/12
DESCRIPTION:Title: From the Double EFT Expansion to the Black Hole-Tower Correspondence: To
wers of states in asymptotic regimes\nby Alvaro Herráez (Max Planck I
nstitute) as part of High Energy Theory NYU Abu Dhabi\n\nLecture held in N
YU Abu Dhabi Computational Research Building.\n\nAbstract\nIn this talk we
will explore the structure of EFTs and black holes within the context of
Quantum Gravity. Using string theory as a laboratory\, we argue that any
EFT describing Quantum Gravity should exhibit a double expansion for highe
r-curvature operators\, which includes terms suppressed with respect to th
e Einstein-Hilbert term by either the mass of the lightest tower of states
or by the Quantum Gravity cutoff\, which we identify as the species scale
. We will then discuss the implications of this framework for the asymptot
ic behaviour of certain Wilson coefficients of higher-dimensional gravitat
ional operators\, revealing interesting connections with recent S-matrix b
ootstrap results. Complementarily\, we will present how minimal black hole
s can be used to understand such quantum gravity cutoff in asymptotic regi
ons of field space\, where their entropy appears to correspond to that of
towers of states predicted by the Distance Conjecture. This provides a gen
eralization of the celebrated black hole-string correspondence. Finally\,
we briefly present how these two approaches to the understanding of the s
pecies scale fit together \, by discussing a particular example of BPS bla
ck hole in 4d N=2 from type IIA string theory compactified on a Calabi-Yau
threefold.\n
LOCATION:https://researchseminars.org/talk/HETnyuad/12/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ahmed Rakin Kamal (Masaryk University\, Brno\, Czech Republic)
DTSTART:20260226T070000Z
DTEND:20260226T080000Z
DTSTAMP:20260422T213012Z
UID:HETnyuad/13
DESCRIPTION:Title: Cosmological flux backgrounds in string theory\nby Ahmed Rakin Kamal
(Masaryk University\, Brno\, Czech Republic) as part of High Energy Theor
y NYU Abu Dhabi\n\nLecture held in NYU Abu Dhabi Computational Research Bu
ilding.\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/HETnyuad/13/
END:VEVENT
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