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...
Symmetries of Quantum Field Theories (QFTs), whose fusion does
not satisfy a group multiplication law, are generally referred to
as non-invertible. I will discuss their connection to generalized
gauging and higher fusion categories, providing by...
Motivated by holographic duality and the Ryu-Takyanagi formula,
we ask the question, “What quantum problem are Einstein’s equations
solving?” Answering this question amounts to dissecting or
“deconstructing” AdS/CFT to identify the quantum...
In this talk I will discuss about Amplituhedra – generalizations
of polytopes inside the Grassmannian – introduced by physicists as
one of the new geometric constructions encoding physical
observables in Quantum Field Theories. In particular, I will...
This talk reviews the use of radial quantization to compute
Chern-Simons partition functions on handlebodies of arbitrary
genus. The partition function is given by a particular transition
amplitude between two states which are defined on the
Riemann...
Monte Carlo simulation is a powerful tool to study the Euclidean
path integral. In the context of gauge/gravity duality, it enables
us to access the strong-coupling regime of the QFT side. In this
talk, we provide the latest results of the...
