Speaker
Siye Wu
(National Tsing Hua University)
Description
Higher-form symmetries introduced in the work of Gaiotto-Kapustin-Seiberg-Willet are global symmetries whose action on the quantum Hilbert space depend on extended objects and so are the charged objects. In this talk, we explore the classical origin of higher-form symmetries as actions of certain cohomology groups on fields and some of its consequences.