Duality defects from lattice, gauging and symmetry TFT

Time: 2022-12-20 Tue 16:00-17:00

Venue:Tencent: 607 3645 0351

Organizer:Hao Zheng

Speaker:Yunqin Zheng Tokyo University


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.

DATEDecember 20, 2022
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