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 three-dimensional Bondi-Metzner-Sachs 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 in any dimension.
- Received 24 March 2017
- Revised 6 December 2017
DOI:https://doi.org/10.1103/PhysRevLett.120.101301
© 2018 American Physical Society
Physics Subject Headings (PhySH)
Gravitation, Cosmology & Astrophysics