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BEGIN:VEVENT
SUMMARY:Andy Royston (Penn State)
DTSTART:20210913T200000Z
DTEND:20210913T210000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/1
DESCRIPTION:Title: Accelerating Solitons\nby Andy Royston (Penn State) as part o
f MIST High-Energy Theory Seminar\n\nLecture held in M108\, Mitchell Insti
tute for Fundamental Physics and Astronomy.\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Anindya Sengupta (Texas A&M)
DTSTART:20210920T200000Z
DTEND:20210920T210000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/2
DESCRIPTION:Title: Linearized Supergeometry of 11D\, N=1/8 Superspace\nby Anindy
a Sengupta (Texas A&M) as part of MIST High-Energy Theory Seminar\n\nLectu
re held in M108\, Mitchell Institute for Fundamental Physics and Astronomy
.\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Lorenz Eberhardt (IAS)
DTSTART:20210927T200000Z
DTEND:20210927T210000Z
DTSTAMP:20260404T094600Z
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
Institute for Fundamental Physics and Astronomy.\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Severin Lüst (Harvard)
DTSTART:20211004T200000Z
DTEND:20211004T210000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/4
DESCRIPTION:Title: The Tadpole Problem\nby Severin Lüst (Harvard) as part of MI
ST High-Energy Theory Seminar\n\nLecture held in M108\, Mitchell Institute
for Fundamental Physics and Astronomy.\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Geoff Penington (UC Berkeley & IAS)
DTSTART:20211011T200000Z
DTEND:20211011T210000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/5
DESCRIPTION:Title: Quantum minimal surfaces from quantum error correction\nby Ge
off Penington (UC Berkeley & IAS) as part of MIST High-Energy Theory Semin
ar\n\nLecture held in M108\, Mitchell Institute for Fundamental Physics an
d Astronomy.\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:James Liu (University of Michigan)
DTSTART:20211018T200000Z
DTEND:20211018T210000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/6
DESCRIPTION:Title: T-duality and string alpha' corrections\nby James Liu (Univer
sity of Michigan) as part of MIST High-Energy Theory Seminar\n\nLecture he
ld in M108\, Mitchell Institute for Fundamental Physics and Astronomy.\nAb
stract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jonathan Heckman (UPenn)
DTSTART:20211025T200000Z
DTEND:20211025T210000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/7
DESCRIPTION:Title: Disorder Averaging and its UV (Dis)Contents\nby Jonathan Heck
man (UPenn) 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://stable.researchseminars.org/talk/MISThepth/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Daniel Robbins (University at Albany)
DTSTART:20211101T200000Z
DTEND:20211101T210000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/8
DESCRIPTION:Title: Decomposition in orbifolds\, quantum symmetries\, and anomalies\nby Daniel Robbins (University at Albany) as part of MIST High-Energy T
heory Seminar\n\nLecture held in M108\, Mitchell Institute for Fundamental
Physics and Astronomy.\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/8/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Djordje Minic (Virginia Tech)
DTSTART:20211108T210000Z
DTEND:20211108T220000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/9
DESCRIPTION:Title: From quantum spacetime to string theory and quantum gravity pheno
menology\nby Djordje Minic (Virginia Tech) as part of MIST High-Energy
Theory Seminar\n\nLecture held in M108\, Mitchell Institute for Fundament
al Physics and Astronomy.\n\nAbstract\nQuantum gravity effects are traditi
onally tied to short distances and high energies. In this talk we argue th
at\, perhaps surprisingly\, quantum gravity may have important consequence
s for the phenomenology of the infrared. We center our discussion around a
conception of quantum gravity involving a notion of quantum spacetime tha
t arises in metastring theory. This theory allows for an evolution of a co
smological Universe in which string-dual degrees of freedom decouple as th
e Universe ages. Importantly such an implementation of quantum gravity all
ows for the inclusion of a fundamental length scale without introducing th
e fundamental breaking of Lorentz symmetry. The mechanism seems to have po
tential for an entirely novel source for dark matter/energy. The simplest
observational consequences of this scenario may very well be residual infr
ared modifications that emerge through the evolution of the Universe.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/9/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Gabriel Larios (University of Michigan)
DTSTART:20211115T210000Z
DTEND:20211115T220000Z
DTSTAMP:20260404T094600Z
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\nLecture held in M108\, Mitchell Institute for Fundamental Physics and
Astronomy.\n\nAbstract\nInfinite towers of massive modes arise for every c
ompactification of higher dimensional theories. Understanding the properti
es of these Kaluza-Klein towers on non-trivial solutions with an AdS facto
r has been a longstanding issue with clear holographic interest\, as they
describe the spectrum of single-trace operators of the dual CFTs at strong
coupling and large N. In this talk\, I will focus on two classes of solut
ions of such kind. The first class consists of AdS4 S-fold solutions of Ty
pe 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 i
n D=3. In both cases\, the spectra can be computed using recent techniques
from Exceptional Field Theory\, and the information thus obtained leads t
o several unexpected conclusions.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/10/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Mirjam Cvetic (UPenn)
DTSTART:20211122T210000Z
DTEND:20211122T220000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/11
DESCRIPTION:Title: Towards Exact matter spectra of F-theory Minimal Supersymmetric
Standard Models\nby Mirjam Cvetic (UPenn) as part of MIST High-Energy
Theory Seminar\n\nLecture held in M108\, Mitchell Institute for Fundamenta
l Physics and Astronomy.\n\nAbstract\nWithin the largest\, currently known
\, class of one Quadrillion globally consistent F-theory\nStandard Models
with gauge coupling unification and no chiral exotics\, we present advance
s in the determination of the full matter spectra\, which are governed by
fractional powers of line bundles\, also known as root bundles on matter c
urves. We systematically determine root bundle constraints that result in
the matter spectra without vector-like chiral exotics. On a technical leve
l\, we employ a diagrammatic description of root bundles on nodal matter c
urves and subsequently a deformation theory to smooth matter curves.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/11/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Grégoire Josse (LPTHE\, Sorbonne Universite)
DTSTART:20211116T210000Z
DTEND:20211116T220000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/15
DESCRIPTION:Title: Generalised Geometry and consistent truncation\nby Grégoire
Josse (LPTHE\, Sorbonne Universite) as part of MIST High-Energy Theory Se
minar\n\nLecture held in M108\, Mitchell Institute for Fundamental Physics
and Astronomy.\n\nAbstract\nIn this talk I will present how the Generalis
ed geometry framework provides a systematic and simple way to derive consi
stent truncation of ten and eleven dimension supergravity to any dimension
and any amount of supersymmetry.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/15/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sridip Pal (IAS)
DTSTART:20220124T200000Z
DTEND:20220124T210000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/16
DESCRIPTION:Title: Automorphic Spectra and the Conformal Bootstrap\nby Sridip P
al (IAS) as part of MIST High-Energy Theory Seminar\n\nLecture held in M10
8\, Mitchell Institute for Fundamental Physics and Astronomy.\n\nAbstract\
nWe point out that the spectral geometry of hyperbolic manifolds provides
a remarkably precise model of the modern conformal bootstrap. As an applic
ation\, we use conformal bootstrap techniques to derive rigorous computer-
assisted upper bounds on the lowest positive eigenvalue $\\lambda_1(X)$ of
theLaplace-Beltrami operator on closed hyperbolic surfaces and 2-orbifold
s $X$. In a number of notable cases\, our bounds are nearly saturated by k
nown surfaces and orbifolds. For instance\, our bound on all genus-2 surfa
ces $X$ is $\\lambda_1(X)\\leq 3.8388976481$\, while the Bolza surface has
$\\lambda_1(X)\\approx 3.838887258$. \n\nI will explain that hyperbolic s
urface are of the form \\Gamma\\G/K with G=PSL(2\,R)\, K=SO(2) /{\\pm I} a
nd \\Gamma being Fuchsian group. For a given hyperbolic surface\, one can
define a Hilbert space of local operators\, transforming under unitary irr
eps of a conformal group (PSL(2\,R)) and introduce a notion of operator pr
oduct expanion (OPE). The associativity of this OPE reflects the associati
vity of function multiplication on the space \\Gamma\\G and leads to the b
ootstrap equations. Now the functions on \\Gamma\\G can be thought of auto
morphic forms on the surface \\Gamma\\G/K and I will show that the scaling
dimensions of these operators are in fact related to the automorphic spec
tra in particular the Laplacian eigenvalues on the surface. Hence the boot
strap equations imply bound on the Laplacian eigenvalues. \n\nFinally\, I
will make some remarks about how our methods can be generalized to higher-
dimensional hyperbolic manifolds (or orbifolds) and to yield stronger boun
ds in the two-dimensional case. This is based on a work (arXiv:2111.12716)
with P. Kravchuk and D. Mazac.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/16/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Kurt Hinterbichler (Case Western)
DTSTART:20220131T200000Z
DTEND:20220131T210000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/17
DESCRIPTION:Title: Symmetries and Anomalies at the IR fixed point of gravity\nb
y Kurt Hinterbichler (Case Western) as part of MIST High-Energy Theory Sem
inar\n\nLecture held in M102\, Mitchell Institute for Fundamental Physics
and Astronomy.\n\nAbstract\nI will discuss symmetries that arise at the in
frared fixed point of the RG flow of Einstein gravity\, including conforma
l vs. scale invariance in various dimensions\, as well as 1-form generaliz
ed global symmetries and new anomalies that arise among them.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/17/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Yiming Chen (Princeton)
DTSTART:20220207T200000Z
DTEND:20220207T210000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/18
DESCRIPTION:Title: Aspects of the Black Hole/String Transition\nby Yiming Chen
(Princeton) as part of MIST High-Energy Theory Seminar\n\nLecture held in
M108\, Mitchell Institute for Fundamental Physics and Astronomy.\n\nAbstra
ct\nIt has long been speculated that a black hole in string theory turns i
nto highly excited strings close to the Hagedorn temperature. Gravitationa
l attraction pulls different parts of the string together\, forming a star
-like configuration. In this talk\, I will review the properties of a conc
rete solution of this kind\, first discovered by Horowitz and Polchinski.
I will discuss whether the Horowitz- Polchinski solution can be smoothly c
onnected with the black hole as worldsheet CFTs.\nIf time permits\, I will
discuss 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 impo
rtance of a potential family of generalizations of the Horowitz-Polchinski
solution.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/18/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Mihalis Dafermos (Princeton\, Cambridge)
DTSTART:20220214T200000Z
DTEND:20220214T210000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/19
DESCRIPTION:Title: Strong Cosmic Censorship Versus $\\Lambda$\nby Mihalis Dafer
mos (Princeton\, Cambridge) as part of MIST High-Energy Theory Seminar\n\n
Lecture held in M102\, Mitchell Institute for Fundamental Physics and Astr
onomy.\n\nAbstract\nThe strong cosmic censorship conjecture is a fundament
al open problem in classical general relativity\, first put forth by Roger
Penrose in the early 70s. This is essentially the question of whether gen
eral relativity is a deterministic theory. Perhaps the most exciting arena
where the validity of the conjecture is challenged is the interior of rot
ating black holes\, and there has been a lot of work in the past 50 years
in identifying mechanisms ensuring that at least some formulation of the c
onjecture be true. It turns out that when a nonzero cosmological constant
$\\Lambda$ is added to the Einstein equations\, these underlying mechanism
s change in an unexpected way\, and the validity of the conjecture depends
on a detailed understanding of subtle aspects of black hole scattering th
eory\, 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://stable.researchseminars.org/talk/MISThepth/19/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Henriette Elvang (U Michigan)
DTSTART:20220221T200000Z
DTEND:20220221T210000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/20
DESCRIPTION:Title: Bootstrap of the KLT Double-Copy\nby Henriette Elvang (U Mi
chigan) as part of MIST High-Energy Theory Seminar\n\nLecture held in M108
\, Mitchell Institute for Fundamental Physics and Astronomy.\n\nAbstract\n
In field theory\, the "double copy" can be thought of as a multiplicative
map between tree amplitudes of two field theories into tree amplitudes of
another theory. The origin of the map is string theory\, but from a botto
m-up Effective Field Theory approach\, a natural question is if there exis
ts other versions of the double-copy map. In the talk I will review the do
uble copy and a novel recent approach to generalize it. I will discuss som
e new algebraic structures that this "bootstrap" of the double-copy entai
ls.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/20/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Robert Brandenberger (McGill)
DTSTART:20220228T200000Z
DTEND:20220228T210000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/21
DESCRIPTION:Title: Emergent Cosmology from Matrix Theory\nby Robert Brandenberg
er (McGill) as part of MIST High-Energy Theory Seminar\n\nLecture held in
M108\, Mitchell Institute for Fundamental Physics and Astronomy.\n\nAbstra
ct\nI will argue that standard Effective Field Theory techniques are inapp
licable to describe the very early universe\, and that we hence need to tu
rn to a non-perturbative approach. The BFSS (Banks\, Fischler\, Shenker an
d Susskind) matrix model is a proposed non-perturbative definition of supe
rstring theory. It is a quantum mechanical model of nine N x N Hermitean m
atrices (no background space). Recent work has shown that in the large N l
imit\, a continuous space with three large and six small dimensions emerge
s. We show that thermal fluctuations in a high temperature state of this m
odel yield scale-invariant spectra of cosmological perturbations and gravi
tational waves. Thus\, the BFSS matrix model may yield both emergent space
-time and an emergent early universe phase.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/21/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Riccardo Penco (Carnegie Mellon)
DTSTART:20220307T200000Z
DTEND:20220307T210000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/22
DESCRIPTION:Title: Hidden Symmetries and Static Response of Black Holes\nby Ric
cardo Penco (Carnegie Mellon) as part of MIST High-Energy Theory Seminar\n
\nLecture held in M108\, Mitchell Institute for Fundamental Physics and As
tronomy.\n\nAbstract\nBlack holes in 4D General Relativity have the remark
able property that they lack any form of static linear response. At length
scales much larger than the Schwarzschild radius\, where black holes can
be described as point particles\, their linear response is captured by an
infinite number of Wilson coefficients in the worldline action. From this
perspective\, the absence of static linear response would appear to pose a
naturalness problem for the point-particle effective theory. In this talk
\, I will discuss a recently discovered network of hidden symmetries of th
e action for black hole perturbations. These symmetries act non-trivially
on the long-distance variables in the point-particle effective theory\, an
d force the linear response coefficients to vanish\, thus solving the appa
rent naturalness problem.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/22/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Dominik Neuenfeld (Perimeter)
DTSTART:20220321T190000Z
DTEND:20220321T200000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/23
DESCRIPTION:Title: Constraining Couplings of End-of-the-World Branes\nby Domini
k Neuenfeld (Perimeter) as part of MIST High-Energy Theory Seminar\n\nLect
ure held in M108\, Mitchell Institute for Fundamental Physics and Astronom
y.\n\nAbstract\nEnd-of-the-world (ETW) branes are used in shedding light o
n Page curve computations\, model black hole microstates\, and embedding c
osmology into holography. I will review braneworld constructions and discu
ss a mechanism for how the effective theory on the brane arises from a reo
rganization of UV data. Oftentimes it is useful (as well as natural from a
n EFT point of view) to introduce additional couplings on the brane. I wil
l show how one can use quantum information theory to constrain the space o
f gravitational couplings on ETW branes in the case of ETW branes used as
BH microstates or cosmologies using the example of an ETW brane embedded i
nto a planar AdS3 black hole geometry: for certain choices of couplings\,
information spreading in the CFT is in conflict with upper bounds on infor
mation or entanglement velocities\, ruling out the possibility that the bu
lk geometry is dual to a CFT state.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/23/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Luca Illiesiu (Stanford)
DTSTART:20220411T190000Z
DTEND:20220411T200000Z
DTSTAMP:20260404T094600Z
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 Physi
cs and Astronomy.\n\nAbstract\nWe study quantum corrections in the gravita
tional 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. T
he analysis provides a gravitational explanation of why 1/16-BPS black hol
es exhibit an exact degeneracy at large N and why all such states have the
same charges\, confirming the belief that the superconformal index precis
ely counts 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 black holes within the same charge sector. This is the first example o
f such a gap for black holes states within the context of AdS5 holography.
We also derive the spectrum of nearBPS states that lie above this gap. Ou
r computation relies on finding the correct version of the N = 2 super-Sch
warzian theory which captures the breaking of the SU(1\, 1|1) symmetry whe
n the black hole has finite temperature and non-zero chemical potential. F
inally\, we comment on possible stringy and non-perturbative corrections t
hat can affect the black hole spectrum.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/24/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Daniele Pranzetti (Perimeter)
DTSTART:20220418T190000Z
DTEND:20220418T200000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/25
DESCRIPTION:Title: Asymptotic Einstein’s Equations and Celestial Symmetries\n
by Daniele Pranzetti (Perimeter) as part of MIST High-Energy Theory Semina
r\n\nLecture held in M108\, Mitchell Institute for Fundamental Physics and
Astronomy.\n\nAbstract\nI will first show how the leading Einstein equati
ons in a large-r expansion around null infinity can be derived and recast
in a compact form by relying uniquely on the transformation properties und
er the corner symmetry group at $\\mathcal{I}$\, the so-called Weyl BMS gr
oup. In addition to the to spin-0 and spin-1 gravitational charges related
to the Bondi mass and angular momentum\, this analysis reveals the existe
nce of a spin-2 charge\, whose Ward identity is equivalent to the sub-subl
eading soft graviton theorem. Motivated by the infinite towers of soft sym
metries recently uncovered in celestial holography\, I will extend the rec
ursion relation defining the gravitational charge dynamics to higher spins
. I will provide evidence that this recursion relation for higher spin cha
rges corresponds to a truncation of the evolution equations for all sublea
ding terms in the Weyl scalar encoding incoming radiation. Moreover\, I wi
ll show that these asymptotic charges form a representation of a $w_{1+\\i
nfty}$ algebra on the gravitational phase space.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/25/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Gary Shiu (U Wisconsin Madison)
DTSTART:20220425T190000Z
DTEND:20220425T200000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/26
DESCRIPTION:Title: Complex Saddles and Euclidean Wormholes in the Lorentzian Path I
ntegral\nby Gary Shiu (U Wisconsin Madison) as part of MIST High-Energ
y Theory Seminar\n\nLecture held in M108\, Mitchell Institute for Fundamen
tal Physics and Astronomy.\n\nAbstract\nWe study complex saddles of the Lo
rentzian path integral for 4D axion gravity and its dual description in te
rms of a 3-form flux\, which include the Giddings-Strominger Euclidean wor
mhole. Transition amplitudes are computed using the Lorentzian path integr
al 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 oper
ator that could arise\, for example\, as a result of considering higher-to
pology transitions. We also analyze the stability of the Giddings-Stroming
er wormhole in the 3-form picture\, where we find that it represents a per
turbatively stable Euclidean saddle of the gravitational path integral. Th
is calls into question the ultimate fate of such solutions in an ultraviol
et-complete theory of quantum gravity.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/26/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Lara Anderson (Virginia Tech)
DTSTART:20220502T190000Z
DTEND:20220502T200000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/27
DESCRIPTION:Title: Discrete Symmetries and Twisted Dimensional Reductions in F-theo
ry\nby Lara Anderson (Virginia Tech) as part of MIST High-Energy Theor
y Seminar\n\nLecture held in M108\, Mitchell Institute for Fundamental Phy
sics and Astronomy.\n\nAbstract\nWithin string compactifications\, geometr
y and field theory are intertwined in deep ways\, with classifications of
geometry leading to new characterizations of field theories. Calabi-Yau el
liptic fibrations play a key role in characterizing and classifying broad
classes of string compactifications. In this talk\, I will discuss compact
ifications of F-theory to 6-dimensions exhibiting discrete symmetries. I w
ill also outline the physics of ’twisted’ dimensional reductions of F-
theory from 6- to 5-dimensions and how they are realized by genus-one fibe
red Calabi-Yau threefolds with novel isometries.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/27/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Hermann Nicolai (Albert Einstein Institute)
DTSTART:20220325T180000Z
DTEND:20220325T190000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/28
DESCRIPTION:Title: News on supermembrane theory\nby Hermann Nicolai (Albert Ein
stein Institute) as part of MIST High-Energy Theory Seminar\n\nLecture hel
d in M102\, Mitchell Institute for Fundamental Physics and Astronomy.\n\nA
bstract\nThe maximally supersymmetric supermembrane theory in space-time d
imension D = 11 is a model ‘beyond’ string theory that incorporates D
= 11 supergravity as a `low energy limit'\, and is thus a candidate theory
for a non-perturbative formulation of superstring theory. In this talk I
will review some basic features\, in particular the reformulation of this
theory as a one-dimensional gauge theory of area preserving diffeomorphism
s\, which naturally leads to the matrix model of M theory. I will also men
tion very recent work (arXiv:2109.00346) to argue that this framework allo
ws for a systematic investigation of the small and large tension limits of
this theory.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/28/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ana-Maria Raclariu (Perimeter Institute)
DTSTART:20220829T190000Z
DTEND:20220829T200000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/29
DESCRIPTION:Title: Celestial Amplitudes from Flat Space Limits of AdS/Witten Diagra
ms\nby Ana-Maria Raclariu (Perimeter Institute) as part of MIST High-E
nergy Theory Seminar\n\nLecture held in M102\, Mitchell Institute for Fund
amental Physics and Astronomy.\n\nAbstract\nThe search for pragmatic obser
vables of quantum gravity remains at the forefront of fundamental physics
research. A large set of ideas collectively known as the gauge-gravity dua
lity have proven fruitful in tackling this problem. While such a duality i
s believed to universally govern gravitational theories\, its nature in th
eories of gravity that describe our universe to a good degree of approxima
tion is still little understood.\nIn this talk I will discuss efforts in f
ormulating a holographic correspondence for gravity in four-dimensional as
ymptotically flat spacetimes. The proposed dual theory lives on a two-dime
nsional celestial sphere at infinity and is constrained by a wide range of
symmetries. I present recent evidence for this proposal by showing that i
t arises naturally in a flat space limit of AdS/CFT. I will illustrate thi
s construction with two related examples: the propagation of a particle in
a shockwave background and the high-energy scattering of 2 particles.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/29/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Tim Wrase (Lehigh U)
DTSTART:20220912T190000Z
DTEND:20220912T200000Z
DTSTAMP:20260404T094600Z
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 hel
d in M102\, Mitchell Institute for Fundamental Physics and Astronomy.\n\nA
bstract\nI revisit type IIB flux compactifications that are mirror dual to
type IIA on rigid Calabi-Yau manifolds. We found a variety of interesting
new solutions\, like infinite families of Minkowski vacua and infinite fa
milies of $AdS_4$ solutions with arbitrarily large numbers of spacetime fi
lling D3 branes. I will discuss how these solutions fit into the web of sw
ampland conjectures.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/30/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Thomas Vandermeulen (Texas A&M U)
DTSTART:20220919T190000Z
DTEND:20220919T200000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/31
DESCRIPTION:Title: Trivially-Acting Symmetries as Topological Operators\nby Tho
mas Vandermeulen (Texas A&M U) as part of MIST High-Energy Theory Seminar\
n\nLecture held in M102\, Mitchell Institute for Fundamental Physics and A
stronomy.\n\nAbstract\nThe modern view of symmetries is that they should b
e regarded as topological operators which act on the states of a theory. W
e show that this formulation can be extended to trivially-acting symmetrie
s\, which are naturally described as a mix of line and point operators. Th
is allows us to refine decomposition by tracking how symmetries distribute
themselves under gauging.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/31/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Radu Roiban (Penn State U)
DTSTART:20220926T190000Z
DTEND:20220926T200000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/32
DESCRIPTION:Title: Dynamics of Spinning Binaries from an Effective Field Theory Per
spective.\nby Radu Roiban (Penn State U) as part of MIST High-Energy T
heory Seminar\n\nLecture held in M102\, Mitchell Institute for Fundamental
Physics and Astronomy.\n\nAbstract\nThe general relativistic two-body dyn
amics is a subject of great theoretical and practical interest in light of
the ongoing observations of gravitational waves by the LIGO/Virgo observa
tories. In recent years the classical limit of quantum scattering amplitud
es provided a means to establish the state of the art in the weak- field r
elativistic approach to this problem. After a brief review of the current
milestones in the conservative weak-field\, relativistic dynamics or two s
pinless bodies\, we will focus on the dynamics of spinning bodies\, whose
description is more primitive. We review an amplitudes-based framework for
the construction of the two- body Hamiltonian for compact spinning binary
systems\, present evidence for a conjectured definition of Kerr black hol
es from a quantum field theory perspective and discuss a possible all-orde
r relation between its open-orbit observables and the eikonal phase of the
four-particle scattering amplitude. Throughout we emphasize structure of
gravitational interactions and direct relations between scattering amplitu
des and observables of two-particle dynamics.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/32/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Andreas Karch (U Texas)
DTSTART:20221003T190000Z
DTEND:20221003T200000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/33
DESCRIPTION:Title: A Top-Down Dictionary for Double Holography\nby Andreas Karc
h (U Texas) as part of MIST High-Energy Theory Seminar\n\nLecture held in
M102\, Mitchell Institute for Fundamental Physics and Astronomy.\n\nAbstra
ct\nHolographic interpretations of Randall-Sundrum (RS) branes provide a l
aboratory to explore the way quantum information evolves in field theories
coupled to gravity. Despite this importance\, the holographic interpretat
ion of RS branes in terms of a theory of gravity coupled to a CFT is rathe
r ad-hoc. In this talk\, we use top-down constructions of RS branes in ord
er to work out a precise dictionary for this “intermediate” holographi
c prescription\, resolving serious causality problems of the naive picture
often used in the literature while preserving many of the successes of th
e RS construction.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/33/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sera Cremonini (Lehigh U)
DTSTART:20221017T190000Z
DTEND:20221017T200000Z
DTSTAMP:20260404T094600Z
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\, M
itchell Institute for Fundamental Physics and Astronomy.\n\nAbstract\nRece
nt years have seen growing efforts to understand the constraints that quan
tum gravity places on physics at much lower energy scales. A number of con
jectures have emerged which attempt to quantify the notion that gravity is
the weakest force\, and identify the “swampland” of effective field t
heories that are inherently incompatible with quantum gravity. In this tal
k I will discuss what we can learn about the weakness of gravity by studyi
ng long range forces between black holes\, and describe ways to test subtl
e aspects of certain swampland conjectures.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/34/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Miguel Montero (Harvard U)
DTSTART:20221024T190000Z
DTEND:20221024T200000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/35
DESCRIPTION:Title: New String Theories from Discrete Theta Angles\nby Miguel Mo
ntero (Harvard U) as part of MIST High-Energy Theory Seminar\n\nLecture he
ld in M102\, Mitchell Institute for Fundamental Physics and Astronomy.\n\n
Abstract\nTopological couplings play a prominent role in our understanding
of field theories\, but their role in string compactifications is much le
ss understood. I explore an example in compactifications of type IIB strin
g theory 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 t
heory in ten dimensions. The new components of moduli space thus construct
ed feature an incomplete lattice of BPS strings\, which has implications f
or a number of Swampland constraints.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/35/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ben Heidenreich (U Mass\, Amherst)
DTSTART:20221107T200000Z
DTEND:20221107T210000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/36
DESCRIPTION:Title: Weak Gravity Conjecture\, BPS states and Geometry\nby Ben He
idenreich (U Mass\, Amherst) as part of MIST High-Energy Theory Seminar\n\
nLecture held in M102\, Mitchell Institute for Fundamental Physics and Ast
ronomy.\n\nAbstract\nI discuss the relationship between extremal black hol
es\, BPS states\, and the Weak Gravity Conjecture (WGC) along with their c
onnections to Calabi-Yau geometry. In particular\, the tower/sublattice WG
C requires an infinite tower of BPS particles in every charge direction in
which extremal BPS black holes exist. In 5d theories arising from M-theor
y on a Calabi- Yau threefold\, I show that these directions include the du
al of the cone of effective divisors of the Calabi- Yau threefold. This im
plies the purely geometric conjecture that infinite towers of holomorphic
curves exist in every direction within this cone\, which I verify in sever
al examples using the genus 0 Gopakumar-Vafa invariants. Along the way I u
ncover new facts about Calabi-Yau geometry as well as interconnections bet
ween swampland conjectures and novel mathematical “cone conjectures’
’.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/36/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Andeas Helset (Caltech)
DTSTART:20221114T200000Z
DTEND:20221114T210000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/37
DESCRIPTION:Title: Geometry in Scattering Amplitudes\nby Andeas Helset (Caltech
) as part of MIST High-Energy Theory Seminar\n\nLecture held in M102\, Mit
chell Institute for Fundamental Physics and Astronomy.\n\nAbstract\nOne ce
ntral property of the S-matrix is its invariance under field redefinitions
. I will discuss how the geometry of field space makes this invariance man
ifest. This geometric formulation also has practical consequences. Scatter
ing amplitudes and the renormalization group equations for a theory of sca
lars and gauge bosons only depend on geometric quantities. Also\, the scat
tering amplitudes satisfy a geometric soft theorem.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/37/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Finn Larsen (U Michigan)
DTSTART:20221121T200000Z
DTEND:20221121T210000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/38
DESCRIPTION:Title: The Attractor Mechanism in Gauged Supergravity\nby Finn Lars
en (U Michigan) as part of MIST High-Energy Theory Seminar\n\nLecture held
in M102\, Mitchell Institute for Fundamental Physics and Astronomy.\n\nAb
stract\nThe conserved charges of a black hole (mass\, charge\,....) maps t
o its near horizon data (area\, electric flux\, ....) through a nontrivial
radial flow. The attractor mechanism for supersymmetric black holes in as
ymptotically flat spacetimes shows that the near horizon data has minimal
dependence on the asymptotic behavior. In asymptotically AdS spacetimes th
e radial flow is important\, because it is interpreted as the relation bet
ween the UV (high energy) and the IR (low energy). The corresponding radia
l flow is qualitatively distinct from its asymptotically flat analogue\, b
ut it has a simple description that agrees with expectations from quantum
field theory.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/38/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Eduardo Casali (Harvard U)
DTSTART:20221128T200000Z
DTEND:20221128T210000Z
DTSTAMP:20260404T094600Z
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://stable.researchseminars.org/talk/MISThepth/39/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Michael Gutperle (UCLA)
DTSTART:20221205T200000Z
DTEND:20221205T210000Z
DTSTAMP:20260404T094600Z
UID:MISThepth/40
DESCRIPTION:Title: Holographic Co-dim 2 Defects in 7d Supergravity and Their Uplift
s\nby Michael Gutperle (UCLA) as part of MIST High-Energy Theory Semin
ar\n\nLecture held in M102\, Mitchell Institute for Fundamental Physics an
d Astronomy.\n\nAbstract\nIn this talk we discuss the holographic descript
ion of co- dimension 2 defects in d=6 SCFTs. We present solutions in seven
dimensional gauged supergravity describing such defects and their uplifts
to eleven dimensions\, embedding in LLM solutions\, as well as the constr
uction of more general defect solutions in this framework.\n
LOCATION:https://stable.researchseminars.org/talk/MISThepth/40/
END:VEVENT
END:VCALENDAR