Speaker: Pavel Putrov (ICTP)
Title: Â Non-invertible symmetries and mixed gravitational anomalies.
Abstract: In my talk I will describe how a presence of a mixed anomaly between a
global symmetry and gravity can be traded off for non-invertibility of
the charge operators. Specifically, I will consider the cases of U(1)
and Z4 symmetries (which include fermion parity) in 4d. I will also
comment on the relevance for the Standard Model. The talk is based on a
joint work with Juven Wang.