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Extremal Kerr black hole entropy in Poincaré gauge theory (2208.04383v2)
Published 8 Aug 2022 in gr-qc and hep-th
Abstract: We analyze the near horizon symmetry of the extremal Kerr black hole within the framework of Poincar\'e 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.
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