Twist Gap and Global Symmetry in Two Dimensions
High Energy Physics - Theory
2020-06-24 v2
Abstract
We show that every compact, unitary two-dimensional CFT with an abelian conserved current has vanishing twist gap for charged primary fields with respect to the Virasoro algebra. This means that either the chiral algebra is enhanced by a charged primary field with zero twist or there is an infinite family of charged primary fields that accumulate to zero twist.
Cite
@article{arxiv.2003.02844,
title = {Twist Gap and Global Symmetry in Two Dimensions},
author = {Nathan Benjamin and Hirosi Ooguri and Shu-Heng Shao and Yifan Wang},
journal= {arXiv preprint arXiv:2003.02844},
year = {2020}
}
Comments
16 pages, 2 figures, v2: minor changes