Speaker
Geoffrey Compere (Free University of Brussels, Belgium)
Date & Time
Fri, 19 June 2020, 15:00 to 16:30
Venue
ICTS virtual seminar, Please register at https://docs.google.com/forms/d/e/1FAIpQLSf0jLgoqiOgDnxbEBGiuIWiOmh9WX8caH-pr13qDBZOO91lmg/viewform (Links to join the seminars will be sent to your registered email address)
Resources
Abstract
Recent work has uncovered interesting connections between memory effects, soft theorems and BMS asymptotic symmetries in the infrared structure of asymptotically flat gravity. In this talk, I will present the AdS/dS generalization of the BMS symmetries. I will discuss the realization of these “Lambda-BMS” symmetries as a surface charge algebra. I will also show that the asymptotically flat BMS surface charge algebra is recovered in the asymptotically flat limit only after adding corner terms in the variational principle in addition to the standard holographic counterterms.
Recordings of past talks can be found here: www.youtube.com/channel/UCw9LdPQ5t7Q7muD0qzn70TA