Metaplectic Categories, Gauging and Property F
Abstract
-Metaplectic categories, unitary modular categories with the same fusion rules as , are prototypical examples of weakly integral modular categories. As such, a conjecture of the second author would imply that images of the braid group representations associated with metaplectic categories are finite groups, i.e. have property . While it was recently shown that itself has property , proving property for the more general class of metaplectic modular categories is an open problem. We verify this conjecture for -metaplectic modular categories when is odd, exploiting their classification and enumeration to relate them to . In another direction, we prove that when is divisible by the -metaplectic categories have non-trivial bosons, and the boson condensation procedure applied to 2 of these bosons yields -metaplectic categories. Otherwise stated: any -metaplectic category is a -gauging of a -metaplectic category, so that the even metaplectic categories lie towers of -gaugings commencing with - or -metaplectic categories with odd.
Cite
@article{arxiv.1808.00698,
title = {Metaplectic Categories, Gauging and Property F},
author = {Paul Gustafson and Eric Rowell and Yuze Ruan},
journal= {arXiv preprint arXiv:1808.00698},
year = {2018}
}
Comments
version 3: condensed proofs