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arXiv · 1511.08687

Supertranslations and Superrotations at the Black Hole Horizon

Laura Donnay·Gaston Giribet·Hernan A. Gonzalez·Miguel Pino
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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.

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Laura Donnay, Gaston Giribet, Hernan A. Gonzalez, Miguel Pino. 2016-03-04. Supertranslations and Superrotations at the Black Hole Horizon. https://doi.org/10.1103/physrevlett.116.091101

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