Supertranslations and Superrotations at the Black Hole Horizon
High Energy Physics - Theory
2016-03-09 v2 General Relativity and Quantum Cosmology
Abstract
We show that the asymptotic symmetries close to nonextremal black hole horizons are generated by an extension of supertranslations. This group is generated by a semidirect sum of Virasoro and Abelian currents. The charges associated with the asymptotic Killing symmetries satisfy the same algebra. When considering the special case of a stationary black hole, the zero mode charges correspond to the angular momentum and the entropy at the horizon.
Keywords
Cite
@article{arxiv.1511.08687,
title = {Supertranslations and Superrotations at the Black Hole Horizon},
author = {Laura Donnay and Gaston Giribet and Hernan A. Gonzalez and Miguel Pino},
journal= {arXiv preprint arXiv:1511.08687},
year = {2016}
}
Comments
6 pages, references added, published version