10/7/2021 Quantum Matter in Mathematics and Physics

2021-10-07 11:54 - 13:54

Title: A tour of categorical symmetry

Abstract: I will discuss some perspectives on symmetry coming from the study of topological defects in quantum field theory. I will argue that we should take topological defects themselves to define the symmetries of QFT. This gives us a view of the “category of QFTs”. I will describe some examples of these “categorical symmetries”, their applications, and some open problems.