BIMSA > Category and Topological Order Seminar Category and Topological Order Seminar Duality defects from lattice, gauging and symmetry TFT
Duality defects from lattice, gauging and symmetry TFT
Organizer
Hao Zheng
Speaker
Yunqin Zheng
Time
Tuesday, December 20, 2022 4:00 PM - 5:00 PM
Venue
Online
Online
Tencent 607 3645 0351 ()
Abstract
Recent years have witnessed an explosion of studies of the non-invertible symmetries in various dimensions. In this talk, I will revisit the most vanilla type of non-invertible symmetry — Kramers-Wannier duality symmetry in (1+1)d, from three different perspectives: 1. lattice; 2. field theory; 3. Symmetry TFT. I will explain the construction of non-invertible defects, their fusion rules, and F-symbols.