Speaker
Francesco Benini
(SISSA, Trieste)
Description
Abstract
Entanglement asymmetry is a measure of symmetry breaking in quantum
subsystems, inspired by quantum information theory, particularly
suited to study out-of-equilibrium states. In the first part of the
talk I will overview this new observable, highlighting some of the key
phenomena it captures, and presenting computations in conformal field
theory. In the second part of the talk I will describe how to define
and compute the asymmetry for higher and noninvertible (or
categorical) symmetries, how it can detect spontaneous symmetry
breaking, and the role played by boundary conditions.