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BEGIN:VEVENT
SUMMARY:Andy Royston (Penn State)
DTSTART:20210913T200000Z
DTEND:20210913T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/1
DESCRIPTION:Title: Accelerating Solitons\nby Andy Royston (Penn State) as part of MIST
High-Energy Theory Seminar\n\nLecture held in M108\, Mitchell Institute fo
r Fundamental Physics and Astronomy.\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/MISThepth/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Anindya Sengupta (Texas A&M)
DTSTART:20210920T200000Z
DTEND:20210920T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/2
DESCRIPTION:Title: Linearized Supergeometry of 11D\, N=1/8 Superspace\nby Anindya Sengu
pta (Texas A&M) as part of MIST High-Energy Theory Seminar\n\nLecture held
in M108\, Mitchell Institute for Fundamental Physics and Astronomy.\nAbst
ract: TBA\n
LOCATION:https://researchseminars.org/talk/MISThepth/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Lorenz Eberhardt (IAS)
DTSTART:20210927T200000Z
DTEND:20210927T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/3
DESCRIPTION:Title: Worldsheet correlators in AdS3\nby Lorenz Eberhardt (IAS) as part of
MIST High-Energy Theory Seminar\n\nLecture held in M108\, Mitchell Instit
ute for Fundamental Physics and Astronomy.\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/MISThepth/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Severin Lüst (Harvard)
DTSTART:20211004T200000Z
DTEND:20211004T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/4
DESCRIPTION:Title: The Tadpole Problem\nby Severin Lüst (Harvard) as part of MIST High
-Energy Theory Seminar\n\nLecture held in M108\, Mitchell Institute for Fu
ndamental Physics and Astronomy.\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/MISThepth/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Geoff Penington (UC Berkeley & IAS)
DTSTART:20211011T200000Z
DTEND:20211011T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/5
DESCRIPTION:Title: Quantum minimal surfaces from quantum error correction\nby Geoff Pen
ington (UC Berkeley & IAS) as part of MIST High-Energy Theory Seminar\n\nL
ecture held in M108\, Mitchell Institute for Fundamental Physics and Astro
nomy.\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/MISThepth/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:James Liu (University of Michigan)
DTSTART:20211018T200000Z
DTEND:20211018T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/6
DESCRIPTION:Title: T-duality and string alpha' corrections\nby James Liu (University of
Michigan) as part of MIST High-Energy Theory Seminar\n\nLecture held in M
108\, Mitchell Institute for Fundamental Physics and Astronomy.\nAbstract:
TBA\n
LOCATION:https://researchseminars.org/talk/MISThepth/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jonathan Heckman (UPenn)
DTSTART:20211025T200000Z
DTEND:20211025T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/7
DESCRIPTION:Title: Disorder Averaging and its UV (Dis)Contents\nby Jonathan Heckman (UP
enn) as part of MIST High-Energy Theory Seminar\n\nLecture held in M108\,
Mitchell Institute for Fundamental Physics and Astronomy.\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/MISThepth/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Daniel Robbins (University at Albany)
DTSTART:20211101T200000Z
DTEND:20211101T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/8
DESCRIPTION:Title: Decomposition in orbifolds\, quantum symmetries\, and anomalies\nby
Daniel Robbins (University at Albany) as part of MIST High-Energy Theory S
eminar\n\nLecture held in M108\, Mitchell Institute for Fundamental Physic
s and Astronomy.\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/MISThepth/8/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Djordje Minic (Virginia Tech)
DTSTART:20211108T210000Z
DTEND:20211108T220000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/9
DESCRIPTION:Title: From quantum spacetime to string theory and quantum gravity phenomenolog
y\nby Djordje Minic (Virginia Tech) as part of MIST High-Energy Theory
Seminar\n\nLecture held in M108\, Mitchell Institute for Fundamental Phys
ics and Astronomy.\n\nAbstract\nQuantum gravity effects are traditionally
tied to short distances and high energies. In this talk we argue that\, pe
rhaps surprisingly\, quantum gravity may have important consequences for t
he phenomenology of the infrared. We center our discussion around a concep
tion of quantum gravity involving a notion of quantum spacetime that arise
s in metastring theory. This theory allows for an evolution of a cosmologi
cal Universe in which string-dual degrees of freedom decouple as the Unive
rse ages. Importantly such an implementation of quantum gravity allows for
the inclusion of a fundamental length scale without introducing the funda
mental breaking of Lorentz symmetry. The mechanism seems to have potential
for an entirely novel source for dark matter/energy. The simplest observa
tional consequences of this scenario may very well be residual infrared mo
difications that emerge through the evolution of the Universe.\n
LOCATION:https://researchseminars.org/talk/MISThepth/9/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Gabriel Larios (University of Michigan)
DTSTART:20211115T210000Z
DTEND:20211115T220000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/10
DESCRIPTION:Title: Lessons and surprises from Kaluza-Klein spectra\nby Gabriel Larios
(University of Michigan) as part of MIST High-Energy Theory Seminar\n\nLec
ture held in M108\, Mitchell Institute for Fundamental Physics and Astrono
my.\n\nAbstract\nInfinite towers of massive modes arise for every compacti
fication of higher dimensional theories. Understanding the properties of t
hese Kaluza-Klein towers on non-trivial solutions with an AdS factor has b
een a longstanding issue with clear holographic interest\, as they describ
e the spectrum of single-trace operators of the dual CFTs at strong coupli
ng and large N. In this talk\, I will focus on two classes of solutions of
such kind. The first class consists of AdS4 S-fold solutions of Type IIB
supergravity that can be obtained from maximal gauged supergravity in D=4.
For the later part\, I will describe new families of solutions in N=(1\,1
) supergravity in D=6 which uplift from half-maximal supergravity in D=3.
In both cases\, the spectra can be computed using recent techniques from E
xceptional Field Theory\, and the information thus obtained leads to sever
al unexpected conclusions.\n
LOCATION:https://researchseminars.org/talk/MISThepth/10/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Mirjam Cvetic (UPenn)
DTSTART:20211122T210000Z
DTEND:20211122T220000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/11
DESCRIPTION:Title: Towards Exact matter spectra of F-theory Minimal Supersymmetric Standar
d Models\nby Mirjam Cvetic (UPenn) as part of MIST High-Energy Theory
Seminar\n\nLecture held in M108\, Mitchell Institute for Fundamental Physi
cs and Astronomy.\n\nAbstract\nWithin the largest\, currently known\, clas
s of one Quadrillion globally consistent F-theory\nStandard Models with ga
uge coupling unification and no chiral exotics\, we present advances in th
e determination of the full matter spectra\, which are governed by fractio
nal powers of line bundles\, also known as root bundles on matter curves.
We systematically determine root bundle constraints that result in the mat
ter spectra without vector-like chiral exotics. On a technical level\, we
employ a diagrammatic description of root bundles on nodal matter curves a
nd subsequently a deformation theory to smooth matter curves.\n
LOCATION:https://researchseminars.org/talk/MISThepth/11/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Grégoire Josse (LPTHE\, Sorbonne Universite)
DTSTART:20211116T210000Z
DTEND:20211116T220000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/15
DESCRIPTION:Title: Generalised Geometry and consistent truncation\nby Grégoire Josse
(LPTHE\, Sorbonne Universite) as part of MIST High-Energy Theory Seminar\n
\nLecture held in M108\, Mitchell Institute for Fundamental Physics and As
tronomy.\n\nAbstract\nIn this talk I will present how the Generalised geom
etry framework provides a systematic and simple way to derive consistent t
runcation of ten and eleven dimension supergravity to any dimension and an
y amount of supersymmetry.\n
LOCATION:https://researchseminars.org/talk/MISThepth/15/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sridip Pal (IAS)
DTSTART:20220124T200000Z
DTEND:20220124T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/16
DESCRIPTION:Title: Automorphic Spectra and the Conformal Bootstrap\nby Sridip Pal (IAS
) as part of MIST High-Energy Theory Seminar\n\nLecture held in M108\, Mit
chell Institute for Fundamental Physics and Astronomy.\n\nAbstract\nWe poi
nt out that the spectral geometry of hyperbolic manifolds provides a remar
kably precise model of the modern conformal bootstrap. As an application\,
we use conformal bootstrap techniques to derive rigorous computer-assiste
d upper bounds on the lowest positive eigenvalue $\\lambda_1(X)$ of theLap
lace-Beltrami operator on closed hyperbolic surfaces and 2-orbifolds $X$.
In a number of notable cases\, our bounds are nearly saturated by known su
rfaces and orbifolds. For instance\, our bound on all genus-2 surfaces $X$
is $\\lambda_1(X)\\leq 3.8388976481$\, while the Bolza surface has $\\lam
bda_1(X)\\approx 3.838887258$. \n\nI will explain that hyperbolic surface
are of the form \\Gamma\\G/K with G=PSL(2\,R)\, K=SO(2) /{\\pm I} and \\Ga
mma being Fuchsian group. For a given hyperbolic surface\, one can define
a Hilbert space of local operators\, transforming under unitary irreps of
a conformal group (PSL(2\,R)) and introduce a notion of operator product e
xpanion (OPE). The associativity of this OPE reflects the associativity of
function multiplication on the space \\Gamma\\G and leads to the bootstra
p equations. Now the functions on \\Gamma\\G can be thought of automorphic
forms on the surface \\Gamma\\G/K and I will show that the scaling dimens
ions of these operators are in fact related to the automorphic spectra in
particular the Laplacian eigenvalues on the surface. Hence the bootstrap e
quations imply bound on the Laplacian eigenvalues. \n\nFinally\, I will ma
ke some remarks about how our methods can be generalized to higher-dimensi
onal hyperbolic manifolds (or orbifolds) and to yield stronger bounds in t
he two-dimensional case. This is based on a work (arXiv:2111.12716) with P
. Kravchuk and D. Mazac.\n
LOCATION:https://researchseminars.org/talk/MISThepth/16/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Kurt Hinterbichler (Case Western)
DTSTART:20220131T200000Z
DTEND:20220131T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/17
DESCRIPTION:Title: Symmetries and Anomalies at the IR fixed point of gravity\nby Kurt
Hinterbichler (Case Western) as part of MIST High-Energy Theory Seminar\n\
nLecture held in M102\, Mitchell Institute for Fundamental Physics and Ast
ronomy.\n\nAbstract\nI will discuss symmetries that arise at the infrared
fixed point of the RG flow of Einstein gravity\, including conformal vs. s
cale invariance in various dimensions\, as well as 1-form generalized glob
al symmetries and new anomalies that arise among them.\n
LOCATION:https://researchseminars.org/talk/MISThepth/17/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Yiming Chen (Princeton)
DTSTART:20220207T200000Z
DTEND:20220207T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/18
DESCRIPTION:Title: Aspects of the Black Hole/String Transition\nby Yiming Chen (Prince
ton) as part of MIST High-Energy Theory Seminar\n\nLecture held in M108\,
Mitchell Institute for Fundamental Physics and Astronomy.\n\nAbstract\nIt
has long been speculated that a black hole in string theory turns into hig
hly excited strings close to the Hagedorn temperature. Gravitational attra
ction pulls different parts of the string together\, forming a star-like c
onfiguration. In this talk\, I will review the properties of a concrete so
lution of this kind\, first discovered by Horowitz and Polchinski. I will
discuss whether the Horowitz- Polchinski solution can be smoothly connecte
d with the black hole as worldsheet CFTs.\nIf time permits\, I will discus
s an ongoing work on the spectral form factor of a gas of strings\, which
probes the finer details of the spectrum. I will highlight the importance
of a potential family of generalizations of the Horowitz-Polchinski soluti
on.\n
LOCATION:https://researchseminars.org/talk/MISThepth/18/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Mihalis Dafermos (Princeton\, Cambridge)
DTSTART:20220214T200000Z
DTEND:20220214T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/19
DESCRIPTION:Title: Strong Cosmic Censorship Versus $\\Lambda$\nby Mihalis Dafermos (Pr
inceton\, Cambridge) as part of MIST High-Energy Theory Seminar\n\nLecture
held in M102\, Mitchell Institute for Fundamental Physics and Astronomy.\
n\nAbstract\nThe strong cosmic censorship conjecture is a fundamental open
problem in classical general relativity\, first put forth by Roger Penros
e in the early 70s. This is essentially the question of whether general re
lativity is a deterministic theory. Perhaps the most exciting arena where
the validity of the conjecture is challenged is the interior of rotating b
lack holes\, and there has been a lot of work in the past 50 years in iden
tifying mechanisms ensuring that at least some formulation of the conjectu
re be true. It turns out that when a nonzero cosmological constant $\\Lamb
da$ is added to the Einstein equations\, these underlying mechanisms chang
e in an unexpected way\, and the validity of the conjecture depends on a d
etailed understanding of subtle aspects of black hole scattering theory\,
surprisingly involving\, in the case of negative $\\Lambda$\, some number
theory. Does strong cosmic censorship survive the challenge of non-zero $\
\Lambda$? This talk will try to address this Question!\n
LOCATION:https://researchseminars.org/talk/MISThepth/19/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Henriette Elvang (U Michigan)
DTSTART:20220221T200000Z
DTEND:20220221T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/20
DESCRIPTION:Title: Bootstrap of the KLT Double-Copy\nby Henriette Elvang (U Michigan)
as part of MIST High-Energy Theory Seminar\n\nLecture held in M108\, Mitc
hell Institute for Fundamental Physics and Astronomy.\n\nAbstract\nIn fiel
d theory\, the "double copy" can be thought of as a multiplicative map be
tween tree amplitudes of two field theories into tree amplitudes of anothe
r theory. The origin of the map is string theory\, but from a bottom-up Ef
fective Field Theory approach\, a natural question is if there exists othe
r versions of the double-copy map. In the talk I will review the double co
py and a novel recent approach to generalize it. I will discuss some new a
lgebraic structures that this "bootstrap" of the double-copy entails.\n
LOCATION:https://researchseminars.org/talk/MISThepth/20/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Robert Brandenberger (McGill)
DTSTART:20220228T200000Z
DTEND:20220228T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/21
DESCRIPTION:Title: Emergent Cosmology from Matrix Theory\nby Robert Brandenberger (McG
ill) as part of MIST High-Energy Theory Seminar\n\nLecture held in M108\,
Mitchell Institute for Fundamental Physics and Astronomy.\n\nAbstract\nI w
ill argue that standard Effective Field Theory techniques are inapplicable
to describe the very early universe\, and that we hence need to turn to a
non-perturbative approach. The BFSS (Banks\, Fischler\, Shenker and Sussk
ind) matrix model is a proposed non-perturbative definition of superstring
theory. It is a quantum mechanical model of nine N x N Hermitean matrices
(no background space). Recent work has shown that in the large N limit\,
a continuous space with three large and six small dimensions emerges. We s
how that thermal fluctuations in a high temperature state of this model yi
eld scale-invariant spectra of cosmological perturbations and gravitationa
l waves. Thus\, the BFSS matrix model may yield both emergent space-time a
nd an emergent early universe phase.\n
LOCATION:https://researchseminars.org/talk/MISThepth/21/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Riccardo Penco (Carnegie Mellon)
DTSTART:20220307T200000Z
DTEND:20220307T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/22
DESCRIPTION:Title: Hidden Symmetries and Static Response of Black Holes\nby Riccardo P
enco (Carnegie Mellon) as part of MIST High-Energy Theory Seminar\n\nLectu
re held in M108\, Mitchell Institute for Fundamental Physics and Astronomy
.\n\nAbstract\nBlack holes in 4D General Relativity have the remarkable pr
operty that they lack any form of static linear response. At length scales
much larger than the Schwarzschild radius\, where black holes can be desc
ribed as point particles\, their linear response is captured by an infinit
e number of Wilson coefficients in the worldline action. From this perspec
tive\, the absence of static linear response would appear to pose a natura
lness problem for the point-particle effective theory. In this talk\, I wi
ll discuss a recently discovered network of hidden symmetries of the actio
n for black hole perturbations. These symmetries act non-trivially on the
long-distance variables in the point-particle effective theory\, and force
the linear response coefficients to vanish\, thus solving the apparent na
turalness problem.\n
LOCATION:https://researchseminars.org/talk/MISThepth/22/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Dominik Neuenfeld (Perimeter)
DTSTART:20220321T190000Z
DTEND:20220321T200000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/23
DESCRIPTION:Title: Constraining Couplings of End-of-the-World Branes\nby Dominik Neuen
feld (Perimeter) as part of MIST High-Energy Theory Seminar\n\nLecture hel
d in M108\, Mitchell Institute for Fundamental Physics and Astronomy.\n\nA
bstract\nEnd-of-the-world (ETW) branes are used in shedding light on Page
curve computations\, model black hole microstates\, and embedding cosmolog
y into holography. I will review braneworld constructions and discuss a me
chanism for how the effective theory on the brane arises from a reorganiza
tion of UV data. Oftentimes it is useful (as well as natural from an EFT p
oint of view) to introduce additional couplings on the brane. I will show
how one can use quantum information theory to constrain the space of gravi
tational couplings on ETW branes in the case of ETW branes used as BH micr
ostates or cosmologies using the example of an ETW brane embedded into a p
lanar AdS3 black hole geometry: for certain choices of couplings\, informa
tion spreading in the CFT is in conflict with upper bounds on information
or entanglement velocities\, ruling out the possibility that the bulk geom
etry is dual to a CFT state.\n
LOCATION:https://researchseminars.org/talk/MISThepth/23/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Luca Illiesiu (Stanford)
DTSTART:20220411T190000Z
DTEND:20220411T200000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/24
DESCRIPTION:Title: BPS and Near-BPS Black Holes in $AdS_5$ and Their Spectrum in N=4 SYM\nby Luca Illiesiu (Stanford) as part of MIST High-Energy Theory Seminar
\n\nLecture held in M108\, Mitchell Institute for Fundamental Physics and
Astronomy.\n\nAbstract\nWe study quantum corrections in the gravitational
path integral around nearly 1/16-BPS black holes in asymptotically $AdS_5
× S_5$ space\, dual to heavy states in 4D N = 4 super YangMills. The anal
ysis provides a gravitational explanation of why 1/16-BPS black holes exhi
bit an exact degeneracy at large N and why all such states have the same c
harges\, confirming the belief that the superconformal index precisely cou
nts the entropy of extremal black holes. We show the presence of a gap of
order N−2 between the 1/16-BPS black holes and the lightest near-BPS bla
ck holes within the same charge sector. This is the first example of such
a gap for black holes states within the context of AdS5 holography. We als
o derive the spectrum of nearBPS states that lie above this gap. Our compu
tation relies on finding the correct version of the N = 2 super-Schwarzian
theory which captures the breaking of the SU(1\, 1|1) symmetry when the b
lack hole has finite temperature and non-zero chemical potential. Finally\
, we comment on possible stringy and non-perturbative corrections that can
affect the black hole spectrum.\n
LOCATION:https://researchseminars.org/talk/MISThepth/24/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Daniele Pranzetti (Perimeter)
DTSTART:20220418T190000Z
DTEND:20220418T200000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/25
DESCRIPTION:Title: Asymptotic Einstein’s Equations and Celestial Symmetries\nby Dani
ele Pranzetti (Perimeter) as part of MIST High-Energy Theory Seminar\n\nLe
cture held in M108\, Mitchell Institute for Fundamental Physics and Astron
omy.\n\nAbstract\nI will first show how the leading Einstein equations in
a large-r expansion around null infinity can be derived and recast in a co
mpact form by relying uniquely on the transformation properties under the
corner symmetry group at $\\mathcal{I}$\, the so-called Weyl BMS group. In
addition to the to spin-0 and spin-1 gravitational charges related to the
Bondi mass and angular momentum\, this analysis reveals the existence of
a spin-2 charge\, whose Ward identity is equivalent to the sub-subleading
soft graviton theorem. Motivated by the infinite towers of soft symmetries
recently uncovered in celestial holography\, I will extend the recursion
relation defining the gravitational charge dynamics to higher spins. I wil
l provide evidence that this recursion relation for higher spin charges co
rresponds to a truncation of the evolution equations for all subleading te
rms in the Weyl scalar encoding incoming radiation. Moreover\, I will show
that these asymptotic charges form a representation of a $w_{1+\\infty}$
algebra on the gravitational phase space.\n
LOCATION:https://researchseminars.org/talk/MISThepth/25/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Gary Shiu (U Wisconsin Madison)
DTSTART:20220425T190000Z
DTEND:20220425T200000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/26
DESCRIPTION:Title: Complex Saddles and Euclidean Wormholes in the Lorentzian Path Integral
\nby Gary Shiu (U Wisconsin Madison) as part of MIST High-Energy Theor
y Seminar\n\nLecture held in M108\, Mitchell Institute for Fundamental Phy
sics and Astronomy.\n\nAbstract\nWe study complex saddles of the Lorentzia
n path integral for 4D axion gravity and its dual description in terms of
a 3-form flux\, which include the Giddings-Strominger Euclidean wormhole.
Transition amplitudes are computed using the Lorentzian path integral and
with the help of Picard-Lefschetz theory. The number and nature of saddles
is shown to qualitatively change in the presence of a bilocal operator th
at could arise\, for example\, as a result of considering higher-topology
transitions. We also analyze the stability of the Giddings-Strominger worm
hole in the 3-form picture\, where we find that it represents a perturbati
vely stable Euclidean saddle of the gravitational path integral. This call
s into question the ultimate fate of such solutions in an ultraviolet-comp
lete theory of quantum gravity.\n
LOCATION:https://researchseminars.org/talk/MISThepth/26/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Lara Anderson (Virginia Tech)
DTSTART:20220502T190000Z
DTEND:20220502T200000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/27
DESCRIPTION:Title: Discrete Symmetries and Twisted Dimensional Reductions in F-theory\
nby Lara Anderson (Virginia Tech) as part of MIST High-Energy Theory Semin
ar\n\nLecture held in M108\, Mitchell Institute for Fundamental Physics an
d Astronomy.\n\nAbstract\nWithin string compactifications\, geometry and f
ield theory are intertwined in deep ways\, with classifications of geometr
y leading to new characterizations of field theories. Calabi-Yau elliptic
fibrations play a key role in characterizing and classifying broad classes
of string compactifications. In this talk\, I will discuss compactificati
ons of F-theory to 6-dimensions exhibiting discrete symmetries. I will als
o outline the physics of ’twisted’ dimensional reductions of F-theory
from 6- to 5-dimensions and how they are realized by genus-one fibered Cal
abi-Yau threefolds with novel isometries.\n
LOCATION:https://researchseminars.org/talk/MISThepth/27/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Hermann Nicolai (Albert Einstein Institute)
DTSTART:20220325T180000Z
DTEND:20220325T190000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/28
DESCRIPTION:Title: News on supermembrane theory\nby Hermann Nicolai (Albert Einstein I
nstitute) as part of MIST High-Energy Theory Seminar\n\nLecture held in M1
02\, Mitchell Institute for Fundamental Physics and Astronomy.\n\nAbstract
\nThe maximally supersymmetric supermembrane theory in space-time dimensio
n D = 11 is a model ‘beyond’ string theory that incorporates D = 11 su
pergravity as a `low energy limit'\, and is thus a candidate theory for a
non-perturbative formulation of superstring theory. In this talk I will re
view some basic features\, in particular the reformulation of this theory
as a one-dimensional gauge theory of area preserving diffeomorphisms\, whi
ch naturally leads to the matrix model of M theory. I will also mention ve
ry recent work (arXiv:2109.00346) to argue that this framework allows for
a systematic investigation of the small and large tension limits of this t
heory.\n
LOCATION:https://researchseminars.org/talk/MISThepth/28/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ana-Maria Raclariu (Perimeter Institute)
DTSTART:20220829T190000Z
DTEND:20220829T200000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/29
DESCRIPTION:Title: Celestial Amplitudes from Flat Space Limits of AdS/Witten Diagrams\
nby Ana-Maria Raclariu (Perimeter Institute) as part of MIST High-Energy T
heory Seminar\n\nLecture held in M102\, Mitchell Institute for Fundamental
Physics and Astronomy.\n\nAbstract\nThe search for pragmatic observables
of quantum gravity remains at the forefront of fundamental physics researc
h. A large set of ideas collectively known as the gauge-gravity duality ha
ve proven fruitful in tackling this problem. While such a duality is belie
ved to universally govern gravitational theories\, its nature in theories
of gravity that describe our universe to a good degree of approximation is
still little understood.\nIn this talk I will discuss efforts in formulat
ing a holographic correspondence for gravity in four-dimensional asymptoti
cally flat spacetimes. The proposed dual theory lives on a two-dimensional
celestial sphere at infinity and is constrained by a wide range of symmet
ries. I present recent evidence for this proposal by showing that it arise
s naturally in a flat space limit of AdS/CFT. I will illustrate this const
ruction with two related examples: the propagation of a particle in a shoc
kwave background and the high-energy scattering of 2 particles.\n
LOCATION:https://researchseminars.org/talk/MISThepth/29/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Tim Wrase (Lehigh U)
DTSTART:20220912T190000Z
DTEND:20220912T200000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/30
DESCRIPTION:Title: Type IIB Flux Compactifications with $h^{1\,1} = 0$\nby Tim Wrase (
Lehigh U) as part of MIST High-Energy Theory Seminar\n\nLecture held in M1
02\, Mitchell Institute for Fundamental Physics and Astronomy.\n\nAbstract
\nI revisit type IIB flux compactifications that are mirror dual to type I
IA on rigid Calabi-Yau manifolds. We found a variety of interesting new so
lutions\, like infinite families of Minkowski vacua and infinite families
of $AdS_4$ solutions with arbitrarily large numbers of spacetime filling D
3 branes. I will discuss how these solutions fit into the web of swampland
conjectures.\n
LOCATION:https://researchseminars.org/talk/MISThepth/30/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Thomas Vandermeulen (Texas A&M U)
DTSTART:20220919T190000Z
DTEND:20220919T200000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/31
DESCRIPTION:Title: Trivially-Acting Symmetries as Topological Operators\nby Thomas Van
dermeulen (Texas A&M U) as part of MIST High-Energy Theory Seminar\n\nLect
ure held in M102\, Mitchell Institute for Fundamental Physics and Astronom
y.\n\nAbstract\nThe modern view of symmetries is that they should be regar
ded as topological operators which act on the states of a theory. We show
that this formulation can be extended to trivially-acting symmetries\, whi
ch are naturally described as a mix of line and point operators. This allo
ws us to refine decomposition by tracking how symmetries distribute themse
lves under gauging.\n
LOCATION:https://researchseminars.org/talk/MISThepth/31/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Radu Roiban (Penn State U)
DTSTART:20220926T190000Z
DTEND:20220926T200000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/32
DESCRIPTION:Title: Dynamics of Spinning Binaries from an Effective Field Theory Perspectiv
e.\nby Radu Roiban (Penn State U) as part of MIST High-Energy Theory S
eminar\n\nLecture held in M102\, Mitchell Institute for Fundamental Physic
s and Astronomy.\n\nAbstract\nThe general relativistic two-body dynamics i
s a subject of great theoretical and practical interest in light of the on
going observations of gravitational waves by the LIGO/Virgo observatories.
In recent years the classical limit of quantum scattering amplitudes prov
ided a means to establish the state of the art in the weak- field relativi
stic approach to this problem. After a brief review of the current milesto
nes in the conservative weak-field\, relativistic dynamics or two spinless
bodies\, we will focus on the dynamics of spinning bodies\, whose descrip
tion is more primitive. We review an amplitudes-based framework for the co
nstruction of the two- body Hamiltonian for compact spinning binary system
s\, present evidence for a conjectured definition of Kerr black holes from
a quantum field theory perspective and discuss a possible all-order relat
ion between its open-orbit observables and the eikonal phase of the four-p
article scattering amplitude. Throughout we emphasize structure of gravita
tional interactions and direct relations between scattering amplitudes and
observables of two-particle dynamics.\n
LOCATION:https://researchseminars.org/talk/MISThepth/32/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Andreas Karch (U Texas)
DTSTART:20221003T190000Z
DTEND:20221003T200000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/33
DESCRIPTION:Title: A Top-Down Dictionary for Double Holography\nby Andreas Karch (U Te
xas) as part of MIST High-Energy Theory Seminar\n\nLecture held in M102\,
Mitchell Institute for Fundamental Physics and Astronomy.\n\nAbstract\nHol
ographic interpretations of Randall-Sundrum (RS) branes provide a laborato
ry to explore the way quantum information evolves in field theories couple
d to gravity. Despite this importance\, the holographic interpretation of
RS branes in terms of a theory of gravity coupled to a CFT is rather ad-ho
c. In this talk\, we use top-down constructions of RS branes in order to w
ork out a precise dictionary for this “intermediate” holographic presc
ription\, resolving serious causality problems of the naive picture often
used in the literature while preserving many of the successes of the RS co
nstruction.\n
LOCATION:https://researchseminars.org/talk/MISThepth/33/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sera Cremonini (Lehigh U)
DTSTART:20221017T190000Z
DTEND:20221017T200000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/34
DESCRIPTION:Title: Black Holes and Long Range Forces\nby Sera Cremonini (Lehigh U) as
part of MIST High-Energy Theory Seminar\n\nLecture held in M102\, Mitchell
Institute for Fundamental Physics and Astronomy.\n\nAbstract\nRecent year
s have seen growing efforts to understand the constraints that quantum gra
vity places on physics at much lower energy scales. A number of conjecture
s have emerged which attempt to quantify the notion that gravity is the we
akest force\, and identify the “swampland” of effective field theories
that are inherently incompatible with quantum gravity. In this talk I wil
l discuss what we can learn about the weakness of gravity by studying long
range forces between black holes\, and describe ways to test subtle aspec
ts of certain swampland conjectures.\n
LOCATION:https://researchseminars.org/talk/MISThepth/34/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Miguel Montero (Harvard U)
DTSTART:20221024T190000Z
DTEND:20221024T200000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/35
DESCRIPTION:Title: New String Theories from Discrete Theta Angles\nby Miguel Montero (
Harvard U) as part of MIST High-Energy Theory Seminar\n\nLecture held in M
102\, Mitchell Institute for Fundamental Physics and Astronomy.\n\nAbstrac
t\nTopological couplings play a prominent role in our understanding of fie
ld theories\, but their role in string compactifications is much less unde
rstood. I explore an example in compactifications of type IIB string theor
y with sixteen supercharges\, showing that they lead to previously unknown
components of moduli space in nine\, eight\, and seven dimensions. I also
explain why a similar construction fails to produce a new string theory i
n ten dimensions. The new components of moduli space thus constructed feat
ure an incomplete lattice of BPS strings\, which has implications for a nu
mber of Swampland constraints.\n
LOCATION:https://researchseminars.org/talk/MISThepth/35/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ben Heidenreich (U Mass\, Amherst)
DTSTART:20221107T200000Z
DTEND:20221107T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/36
DESCRIPTION:Title: Weak Gravity Conjecture\, BPS states and Geometry\nby Ben Heidenrei
ch (U Mass\, Amherst) as part of MIST High-Energy Theory Seminar\n\nLectur
e held in M102\, Mitchell Institute for Fundamental Physics and Astronomy.
\n\nAbstract\nI discuss the relationship between extremal black holes\, BP
S states\, and the Weak Gravity Conjecture (WGC) along with their connecti
ons to Calabi-Yau geometry. In particular\, the tower/sublattice WGC requi
res an infinite tower of BPS particles in every charge direction in which
extremal BPS black holes exist. In 5d theories arising from M-theory on a
Calabi- Yau threefold\, I show that these directions include the dual of t
he cone of effective divisors of the Calabi- Yau threefold. This implies t
he purely geometric conjecture that infinite towers of holomorphic curves
exist in every direction within this cone\, which I verify in several exam
ples using the genus 0 Gopakumar-Vafa invariants. Along the way I uncover
new facts about Calabi-Yau geometry as well as interconnections between sw
ampland conjectures and novel mathematical “cone conjectures’’.\n
LOCATION:https://researchseminars.org/talk/MISThepth/36/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Andeas Helset (Caltech)
DTSTART:20221114T200000Z
DTEND:20221114T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/37
DESCRIPTION:Title: Geometry in Scattering Amplitudes\nby Andeas Helset (Caltech) as pa
rt of MIST High-Energy Theory Seminar\n\nLecture held in M102\, Mitchell I
nstitute for Fundamental Physics and Astronomy.\n\nAbstract\nOne central p
roperty of the S-matrix is its invariance under field redefinitions. I wil
l discuss how the geometry of field space makes this invariance manifest.
This geometric formulation also has practical consequences. Scattering amp
litudes and the renormalization group equations for a theory of scalars an
d gauge bosons only depend on geometric quantities. Also\, the scattering
amplitudes satisfy a geometric soft theorem.\n
LOCATION:https://researchseminars.org/talk/MISThepth/37/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Finn Larsen (U Michigan)
DTSTART:20221121T200000Z
DTEND:20221121T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/38
DESCRIPTION:Title: The Attractor Mechanism in Gauged Supergravity\nby Finn Larsen (U M
ichigan) as part of MIST High-Energy Theory Seminar\n\nLecture held in M10
2\, Mitchell Institute for Fundamental Physics and Astronomy.\n\nAbstract\
nThe conserved charges of a black hole (mass\, charge\,....) maps to its n
ear horizon data (area\, electric flux\, ....) through a nontrivial radial
flow. The attractor mechanism for supersymmetric black holes in asymptoti
cally flat spacetimes shows that the near horizon data has minimal depende
nce on the asymptotic behavior. In asymptotically AdS spacetimes the radia
l flow is important\, because it is interpreted as the relation between th
e UV (high energy) and the IR (low energy). The corresponding radial flow
is qualitatively distinct from its asymptotically flat analogue\, but it h
as a simple description that agrees with expectations from quantum field t
heory.\n
LOCATION:https://researchseminars.org/talk/MISThepth/38/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Eduardo Casali (Harvard U)
DTSTART:20221128T200000Z
DTEND:20221128T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/39
DESCRIPTION:by Eduardo Casali (Harvard U) as part of MIST High-Energy Theo
ry Seminar\n\nLecture held in M102\, Mitchell Institute for Fundamental Ph
ysics and Astronomy.\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/MISThepth/39/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Michael Gutperle (UCLA)
DTSTART:20221205T200000Z
DTEND:20221205T210000Z
DTSTAMP:20260422T225718Z
UID:MISThepth/40
DESCRIPTION:Title: Holographic Co-dim 2 Defects in 7d Supergravity and Their Uplifts\n
by Michael Gutperle (UCLA) as part of MIST High-Energy Theory Seminar\n\nL
ecture held in M102\, Mitchell Institute for Fundamental Physics and Astro
nomy.\n\nAbstract\nIn this talk we discuss the holographic description of
co- dimension 2 defects in d=6 SCFTs. We present solutions in seven dimens
ional gauged supergravity describing such defects and their uplifts to ele
ven dimensions\, embedding in LLM solutions\, as well as the construction
of more general defect solutions in this framework.\n
LOCATION:https://researchseminars.org/talk/MISThepth/40/
END:VEVENT
END:VCALENDAR