English

$SO(N)_2$ Braid group representations are Gaussian

Quantum Algebra 2017-07-20 v4 Representation Theory

Abstract

We give a description of the centralizer algebras for tensor powers of spin objects in the pre-modular categories SO(N)2SO(N)_2 (for NN odd) and O(N)2O(N)_2 (for NN even) in terms of quantum (n1)(n-1)-tori, via non-standard deformations of UsoNU\mathfrak{so}_N. As a consequence we show that the corresponding braid group representations are Gaussian representations, the images of which are finite groups. This verifies special cases of a conjecture that braid group representations coming from weakly integral braided fusion categories have finite image.

Keywords

Cite

@article{arxiv.1401.5329,
  title  = {$SO(N)_2$ Braid group representations are Gaussian},
  author = {Eric C. Rowell and Hans Wenzl},
  journal= {arXiv preprint arXiv:1401.5329},
  year   = {2017}
}

Comments

Typos fixed, exposition improved, proofs and statements of Corollary 2.4 and Theorem 4.6 expanded. version 3--two typos corrected. Version 4--close to published version, typos corrected

R2 v1 2026-06-22T02:51:11.214Z