Based on https://arxiv.org/abs/2408.11139 .
In this talk we'll explain how self-dual metrics (which correspond
to spacetimes containing only positive helicity gravitons) can be
written as a sum over connected "tree" diagrams, which are
different...
We revisit the lattice formulation of the Schwinger model using
the Kogut-Susskind Hamiltonian approach with staggered fermions.
This model, introduced by Banks et al., contains the mass
term mlat ∑n (−1)nχ†nχn, and setting it to zero is often...
In this talk I will discuss aspects of decoupling fields that
appear in the engineering of 4d SCFTs from compactifications of 6d
(1,0) SCFTs of A_(N-1) type. By studying various ways of
constructing the anomaly polynomial for the 4d theory, it is...
I will discuss partition functions in three-dimensional quantum
gravity with negative cosmological constant in canonical
quantization. I will review the phase space and its quantization in
detail, which leads to the computation of the gravity...
We will discuss the price of the quantum error correcting codes,
defined as the number of physical qubits needed to reconstruct
whether a given operator has been acted upon the thermal state or
not. By thinking about reconstruction via quantum...
In the 1980's, Atiyah introduced a mathematical definition of
the notion of a topological quantum field theory. In this talk,
I'll recall Atiyah's definition and explain the motivation for the
more elaborate notion of an extended topological field...
Quantum extremal surfaces and islands have led us to rethink the
very meaning of microscopic entropy in the presence of dynamical
gravity. I will present some work elucidating how the island/QES
prescription emerges in a simple doubly holographic...
In the first of two lectures I will present a pedagogical
exploration of perhaps the simplest random matrix model, the
Gaussian Unitary Ensemble. It gives the Airy model in the double
scaling limit. I will first review the features that we
usually...
