English

Explicit Factorization of a Categorical Center

Quantum Algebra 2021-11-16 v1 Mathematical Physics math.MP Representation Theory

Abstract

Given a braided fusion category CC, it is well known that the natural map CCbopZ(C)C \boxtimes C^{bop} \to Z(C) from the square of CC to the (Drinfeld) categorical center Z(C)Z(C) is an equivalence if and only if CC is modular. However, it is not clear how to construct the inverse and the natural isomorphisms. In this work, we provide an explicit construction using insights from a specific quantum field theory, and explore how the equivalence fails for the degenerate cases.

Keywords

Cite

@article{arxiv.2111.06919,
  title  = {Explicit Factorization of a Categorical Center},
  author = {Jin-Cheng Guu and Ying Hong Tham},
  journal= {arXiv preprint arXiv:2111.06919},
  year   = {2021}
}
R2 v1 2026-06-24T07:36:48.441Z