Mathematical Physics Seminar: Christoph Schweigert (Hamburg)

Mathematical Physics Seminar, external speaker

1h virtual talk in MS Teams, followed by informal discussion

Speaker: Christoph Schweigert (Universität Hamburg)

Title: Bulk fields in conformal field theory

Abstract: Two-dimensional conformal field theories are examples of quantum field
theories that are amenable to rigorous mathematical methods. For instance, they allow one to precisely formulate and prove statements about their field content and about the existence of  consistent sets of correlation functions.

In this talk, we present new results on bulk fields in conformal field theories and on correlation functions of bulk fields. We show that string net models for spherical fusion categories provide an efficient approach to bulk correlators, and we explain a new compact description of bulk fields which is also valid for logarithmic conformal field theories.