Gapped phases and phase transitions from the SymTFT

Abstract: The symmetry topological field theory (SymTFT) has emerged in the past years as a key tool to study generalized symmetries. In this talk, I will explain how we can use it to determine gapped infra-red phases of 2d theories that have a symmetry S, which in general is non-invertibile. Moreover, I will introduce a generalization of the usual SymTFT framework that is useful to characterize phase transitions between such gapped phases. The SymTFT also manifestly encodes the order parameters for the phases, thus providing a generalized version of the Landau paradigm for categorical symmetries.

HEP - phenomenologyHEP - theorymathematical physicscategory theory

Audience: researchers in the topic

Symmetry Seminar

Series comments: Weekly seminar on generalized symmetries in QFT, string theory and related topics.