Supertranslations and superrotations at the black hole horizon

LAURA DONNAY; GATON GIRIBET; HERNÁN GONZÁLEZ; MIGUEL PINO

PHYSICAL REVIEW LETTERS

AMER PHYSICAL SOC

Lugar: New York; Año: 2016 vol. 116 p. 91101 - 91101

0031-9007

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.