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FTheory: Black Hole Entropy from BMS Symmetry at the Horizon

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Steven Carlip, UC Davis
When
16 March 2018 from 10:00 AM to 11:00 AM
Where
320 Whitmore Lab
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One of the basic puzzles of black hole thermodynamics is the simplicity and universality of the Beckenstein-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 show that the horizon itself (not "stretched) has a BMS-like symmetry that controls the entropy, allowing a direct counting of quantum states. 

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