Near horizon symmetry and entropy of black holes in the presence of a conformally coupled scalar
arXiv:1403.1921 · doi:10.1088/0264-9381/31/8/085017
Abstract
We analyze the near horizon conformal symmetry for black hole solutions in gravity with a conformally coupled scalar field using the method proposed by Majhi and Padmanabhan recently. It is shown that the entropy of the black holes of the form agrees with Wald entropy. This result is different from previous result obtained by M. Natsuume, T. Okamura and M. Sato using the canonical Hamiltonian formalism, which claims a discrepancy from Wald entropy.
arXiv commentto appear in CQG
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