Topological symmetries and their gaugings in 2dCFT and 3dTFT

Abstract: The study of topological defects in quantum field theory as seen a wealth of activity recently leading to many interesting insights, for example the explicit realization of non-invertible topological defects in higher dimensional QFTs via the gauging of higher form symmetries, or the description of the higher algebraic structures inherent in these topological defects.

In this talk, I would like to focus on low-dimensional examples, where such defects and their properties have been investigated for some time already. I would like to exhibit some of the properties of topological defects in two-dimensional conformal field theory and in three-dimensional topological field theory, and show some of the structural insights into 2dCFT and 3dTFT one can gain with the help of defects. In this way, the well-understood low-dimensional case might serves as a source of ideas and as a test-case for higher dimensional constructions.

HEP - phenomenologyHEP - theorymathematical physics

Audience: researchers in the topic

NHETC Seminar

Series comments: Description: Weekly research seminar of the NHETC at Rutgers University

Livestream link is available on the webpage.