Higher symmetries in quantum field theory are novel concepts of
symmetry that involve extended operators such as Wilson lines in
gauge theory. We briefly review this formalism and then
discuss recent applications to particle physics, including
an...
Black holes are expected to exhibit universal 'random matrix'
behavior at late times, indicative of quantum chaos. The
approach to a late-time plateau in the spectral form factor
(SFF) is a probe of this behavior. In this talk we study the SFF
in...
In certain time-dependent backgrounds there are nonstandard
light strings that are created classically at an instant and cannot
be approximated by particles. We discuss the implications of these
strings to black holes and cosmology.
In this talk, I will describe recent progress on moduli
stabilization in string theory. In particular, I will describe
recently found supersymmetric AdS_4 vacua, with exponential scale
separation, of type IIB string compactifications on O3/O7...
Do the postulates of quantum mechanics survive in quantum
gravity? The probabilistic interpretation of amplitudes,
enforced by the unitarity of time evolution, is not guaranteed
within the path integral formulation and has to be
checked. ...
We study a class of tree-level ansatzes for 2→2 scalar
and gauge boson amplitudes inspired by stringy UV completions.
These amplitudes manifest Regge boundedness and are exponentially
soft for fixed-angle high energy scattering, but unitarity in
the...
Global symmetries are expected to be violated in quantum
gravity. The violation can be captured by nonzero scattering
amplitudes with different initial and final global charges. In this
talk, I will discuss such processes involving the scattering
of...
Quantitative reasoning tasks which can involve mathematics,
science, and programming are often challenging for machine learning
models in general and for language models in particular. We show
that transformer-based language models obtain...
