Orbifolds by 2-groups and decomposition
High Energy Physics - Theory
2022-09-07 v2
Abstract
In this paper we study three-dimensional orbifolds by 2-groups with a trivially-acting one-form symmetry group BK. These orbifolds have a global two-form symmetry, and so one expects that they decompose into (are equivalent to) a disjoint union of other three-dimensional theories, which we demonstrate. These theories can be interpreted as sigma models on 2-gerbes, whose formal structures reflect properties of the orbifold construction.
Cite
@article{arxiv.2204.13708,
title = {Orbifolds by 2-groups and decomposition},
author = {T. Pantev and D. Robbins and E. Sharpe and T. Vandermeulen},
journal= {arXiv preprint arXiv:2204.13708},
year = {2022}
}
Comments
LaTeX, 53 pages; v2: typos fixed, references added