Theoretical Physics Seminar: Matthew Buican

  • Datum: –15.15
  • Plats: Zoom:
  • Föreläsare: Matthew Buican (Queen Mary, U. of London)
  • Kontaktperson: Luca Cassia
  • Seminarium

Title: aXb=c in 2+1D TQFT

Abstract: I will start by giving a gentle introduction to 2+1D topological quantum field theory (TQFT), the fusion of line operators in these theories, and how 1-form symmetry arises. I will then discuss recent work in which we study fusions that are, in a sense I will explain, generalizations of 1-form symmetry and reveal much about global properties of TQFT. I will illustrate the discussion with various examples from 2+1D discrete gauge theories to Chern-Simons theories with continuous gauge groups and mention various open problems.