******** Special Seminar ********

Speaker ：Dr. Tom Wetzstein (OIST)

Title ：The holographic BMS anomalies

Time ：14:00-15:00, Thursday, 2025/11/13

Place ：P512, 5F, General Building III, Nat'l Tsing Hua Univ.

Abstract:
I will explain the role of anomalies in the extended BMS
symmetry of asymptotically flat four-dimensional gravity. I will
then classify them from both the bulk gravitational theory and from
the boundary field theory perspectives using BRST techniques. The
two results agree, provided the associated central charges are
matched. This is the flat space analogue of the Henningson–Skenderis
holographic Weyl anomaly matching in AdS/CFT.