Factorization of IR Dynamics: Soft Black Hole Hair as Soft Wigs

by Massimo Porrati (NYU)

Tuesday 25 Jul 2017, 14:00 → 16:00 Europe/Zurich

4/3-006 - TH Conference Room (CERN)

Conserved charges associated with large gauge symmetries and Bondi-Metzer-Sachs symmetries of asymptotically Minkowski spacetime have been recently shown to give new "soft hair" for black holes --beyond mass, charge and angular momentum.  In this talk, I will outline a study of the constraint on dynamics due to these new symmetries. I will prove that they only constrain long-time, infrared dynamics, in a way that is completely factorizable. Factorization implies in that soft hair does not constrain ``hard" physical processes and cannot be relevant for retrieving black hole information.