A key property of a global symmetry's anomaly is its order: the
smallest integer n for which the diagonal symmetry of the n-copy
system is anomaly-free. While many familiar lattice anomalies have
finite order, perturbative anomalies in the continuum...
Recently, the LZ experiment reported a single event consistent
with a nuclear recoil - a potential signature of dark matter. I’ll
discuss the experiment, the event, and what scenarios people are
discussing. I’ll mention some future scenarios that...
Over the last few years it has been understood that black holes
sufficiently close to extremality receive large quantum gravity
corrections from large fluctuations of the metric. These
corrections modify standard properties of near extremal
black...
I will discuss the bulk mechanism of the stringy exclusion
principle in the AdS3/CFT2 case. Consider the duality between
string theory on AdS3 × S3 × M4 and Sym^N(M4). At finite N, both
the chiral-chiral spectrum and the number of the polar terms...
For a quantum field of arbitrary mass and spin in the static
patch of de Sitter spacetime, the Euclidean partition function
receives contributions from edge modes localized on the horizon,
expressible in terms of the Harish-Chandra character of the...
I will discuss the quantum resource known as magic and its
analysis in many-fermion systems such as the Sachdev-Ye-Kitaev
model. I will show that the SYK calculation of magic can be
quantitatively modeled with a gravity calculation
involving...
Inflation may have occurred at energies up to 10^16 GeV, far
beyond any terrestrial collider. The "cosmological collider"
program aims to extract the mass spectrum and spin content of
particles present during inflation from non-Gaussian
correlators...
We propose a Hamiltonian framework for constructing chiral
gauge theories on the lattice based on symmetry disentanglers:
constant-depth circuits of local unitaries that transform
not-on-site symmetries into on-site ones. When chiral symmetry can
be...
I will employ twistor string theory to construct a bulk dual of
N = 4 super Yang-Mills in the regime of weak 't Hooft coupling. I
will also discuss applications of this duality to the study of
scattering amplitudes, giant graviton correlators, and...
For Pauli stabilizer codes—such as surface codes and color
codes—transversal logical gates are strongly constrained by the
Bravyi–König bound. In particular, implementing a non-Clifford gate
transversally (as required for universality) demands three...
