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arXiv · 1910.01762

Near-Horizon BMS Symmetry, Dimensional Reduction, and Black Hole Entropy

S. Carlip
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Abstract

In an earlier short paper [Phys.\ Rev.\ Lett.\ 120 (2018) 101301, arXiv:1702.04439], I argued that the horizon-preserving diffeomorphisms of a generic black hole are enhanced to a larger BMS${}_3$ symmetry, which is powerful enough to determine the Bekenstein-Hawking entropy. Here I provide details and extensions of that argument, including a loosening of horizon boundary conditions and a more thorough treatment of dimensional reduction and meaning of a "near-horizon symmetry."

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S. Carlip. 2019-10-03. Near-Horizon BMS Symmetry, Dimensional Reduction, and Black Hole Entropy. https://doi.org/10.1103/physrevd.101.046002

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