Categorification and correlation functions in conformal field theory

Details Categorification and correlation functions in conformal field theory Categorification and correlation functions in conformal field theory

2006-02-05

arxiv.org/abs/math/0602079v1

Mathematics

Category Theory

16 pages, Invited contribution to the ICM 2006

Scientific paper

A modular tensor category provides the appropriate data for the construction of a three-dimensional topological field theory. We describe the following analogue for two-dimensional conformal field theories: a 2-category whose objects are symmetric special Frobenius algebras in a modular tensor category and whose morphisms are categories of bimodules. This 2-category provides sufficient ingredients for constructing all correlation functions of a two-dimensional rational conformal field theory. The bimodules have the physical interpretation of chiral data, boundary conditions, and topological defect lines of this theory.

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