Symmetries of 2d TQFTs and Equivariant Verlinde Formulae for General Groups

Autor:	Gukov, Sergei, Pei, Du, Reid, Charles, Shehper, Ali
Rok vydání:	2021
Předmět:	High Energy Physics - Theory Mathematical Physics Mathematics - Algebraic Geometry Mathematics - Quantum Algebra Mathematics - Representation Theory
Druh dokumentu:	Working Paper
Popis:	We study (generalized) discrete symmetries of 2d semisimple TQFTs. These are 2d TQFTs whose fusion rules can be diagonalized. We show that, in this special basis, the 0-form symmetries always act as permutations while 1-form symmetries act by phases. This leads to an explicit description of the gauging of these symmetries. One application of our results is a generalization of the equivariant Verlinde formula to the case of general Lie groups. The generalized formula leads to many predictions for the geometry of Hitchin moduli spaces, which we explicitly check in several cases with low genus and SO(3) gauge group. Comment: 39 pages, 6 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2111.08032 Zobrazit plný text záznamu View this record from Arxiv