Black Hole Entropy from BMS Symmetry at the Horizon

2017/02/28 by S. Carlip · 1 citation
Physics and Astronomy · #gr-qc #hep-th

paper · pdf · doi:10.1103/physrevlett.120.101301

published as Phys. Rev. Lett. 120, 101301 (2018) · 11+1 pages; v2: added references; v3: introduction rewritten to provide more context

arxiv created 2017/06/22 · arxiv updated 2018/03/14

Abstract

Near the horizon, the obvious symmetries of a black hole spacetime---the horizon-preserving diffeomorphisms---are enhanced to a larger symmetry group with a BMS₃ algebra. Using dimensional reduction and covariant phase space techniques, I investigate this augmented symmetry, and show that it is strong enough to determine the black hole entropy.

Cited by

• Near-horizon Bondi-Metzner-Sachs symmetry, dimensional reduction, and black hole entropy