Black Hole Entropy from Bondi-Metzner-Sachs Symmetry at the Horizon

S. Carlip
Phys. Rev. Lett. 120, 101301 – Published 9 March 2018

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.

  • Figure
  • 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

Authors & Affiliations

S. Carlip*

  • Department of Physics, University of California, Davis, California 95616, USA

  • *carlip@physics.ucdavis.edu

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Vol. 120, Iss. 10 — 9 March 2018

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