Extremal Kerr black hole entropy in Poincaré gauge theory
arXiv:2208.04383 · doi:10.1103/PhysRevD.107.044054
Abstract
We analyze the near horizon symmetry of the extremal Kerr black hole within the framework of Poincaré gauge theory (PG) for two important limiting cases: Riemannian and teleparallel solution. We show that the algebra of canonical generators is realized by Virasoro algebra, with central charge which depends on the black hole horizon radius . The conformal entropy of the black hole is obtained via Cardy formula.
arXiv commentLaTex 14 pages; v2 revised version, two references added
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