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

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."

arXiv comment28 pages; longer, more detailed (and extended) version of arXiv:1702.04439

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Cited by in corpus (28)

• Isolated Surfaces and Symmetries of Gravity
• Anomalies in gravitational charge algebras of null boundaries and black hole entropy
• Symmetries at Null Boundaries: Two and Three Dimensional Gravity Cases
• TsT, $T\bar{T}$ and black strings
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• A Rindler Road to Carrollian Worldsheets
• Symmetries of the Black Hole Interior and Singularity Regularization
• Interpolating Between Asymptotic and Near Horizon Symmetries
• Virasoro hair and entropy for axisymmetric Killing horizons
• BMS Field Theories and Weyl Anomaly
• Dual diffeomorphisms and finite distance asymptotic symmetries in 3d gravity
• Entropy in Poincaré gauge theory: Kerr-AdS solution
• Near horizon gravitational charges
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• Stress tensors of 3d Carroll CFTs
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• A Schwarzian on the Stretched Horizon
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