Colloquium
DATE	2023-03-02　16:10-17:00
PLACE	數學系館 1F3174教室
SPEAKER	吳思曄 教授（國立清華大學數學系）
TITLE	Discrete Fluxes, Higher-Form Symmetries and Ward Identities
ABSTRACT	We clarify the recently proposed notion of higher-form symmetries using the example of discrete electric and magnetic fluxes. Applying Noether’s second theorem, we show the existence of higher-form symmetries whenever there are constant gauge transformations. Finally, we explain the higher Ward identity which is a consequence at the quantum level.