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- Black Hole Entropy from BMS Symmetry at the Horizon

One of the basic puzzles of black hole thermodynamics is the simplicity and universality of the Bekenstein-Hawking entropy. The idea that this entropy might be governed by a symmetry at the horizon is an old one, but until now efforts have focused on conformal symmetries, either at infinity or on a "stretched horizon." I argue that a better approach uses a BMS-like symmetry of the horizon itself. This avoids the limitations of previous attempts (including my own), and explains the entropy in terms of a generalization of the Cardy formula for the density of states.

Collection/Series:

Event Type:

Seminar

Speaker(s):

Event Date:

Monday, July 17, 2017 - 11:00 to 12:30

Location:

Space Room

Room #:

400

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