Pantev, TonySharpe, EricYu, Xingyang2024-10-212024-10-212024-10-15Journal of High Energy Physics. 2024 Oct 15;2024(10):112https://hdl.handle.net/10919/121355In this paper, we discuss how gauging one-form symmetries in Chern-Simons theories is implemented in an A-twisted topological open string theory. For example, the contribution from a fixed H/Z bundle on a three-manifold M, arising in a BZ gauging of H Chern-Simons, for Z a finite subgroup of the center of H, is described by an open string worldsheet theory whose bulk is a sigma model with target a Z-gerbe (a bundle of one-form symmetries) over T∗M, of characteristic class determined by the H/Z bundle. We give a worldsheet picture of the decomposition of one-form-symmetry-gauged Chern-Simons in three dimensions, and we describe how a target-space constraint on bundles arising in the gauged Chern-Simons theory has a natural worldsheet realization. Our proposal provides examples of the expected correspondence between worldsheet global higher-form symmetries, and target-space gauged higher-form symmetries.application/pdfenCreative Commons Attribution 4.0 InternationalArticle - Refereed2024-10-20The Author(s)https://doi.org/10.1007/JHEP10(2024)112