Black Hole Entropy from BMS Symmetry at the Horizon

Abstract

Near the horizon, the obvious symmetries of a black hole spacetime---the horizon-preserving diffeomorphisms---are enhanced to a larger symmetry group with a BMS${}_3$ algebra. Using dimensional reduction and covariant phase space techniques, I investigate this augmented symmetry, and show that it is strong enough to determine the black hole entropy.

11+1 pages; v2: added references; v3: introduction rewritten to provide more context

References in corpus (6)

• The BMS/GCA correspondence
• Superrotation Charge and Supertranslation Hair on Black Holes
• Soft hairy horizons in three spacetime dimensions
• Noether current from the surface term of gravitational action, Virasoro algebra and horizon entropy
• On the Membrane Paradigm and Spontaneous Breaking of Horizon BMS Symmetries
• Rindler/Contracted-CFT Correspondence

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• Symmetries at Null Boundaries: Two and Three Dimensional Gravity Cases
• Field Theories on Null Manifolds
• TsT, $T\bar{T}$ and black strings
• Mapping relativistic to ultra/non-relativistic conformal symmetries in 2D and finite $\sqrt{T\bar{T}}$ deformations
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• Near-Horizon BMS Symmetry, Dimensional Reduction, and Black Hole Entropy
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• Symmetries of the Black Hole Interior and Singularity Regularization
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• Symmetries, charges and conservation laws at causal diamonds in general relativity
• Non-Lorentzian Chaos and Cosmological Holography
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• Horizon Strings as 3d Black Hole Microstates
• Virasoro hair and entropy for axisymmetric Killing horizons
• BMS Field Theories and Weyl Anomaly
• BMS Modular Diaries: Torus one-point function
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• Infrared Effects in the Late Stages of Black Hole Evaporation
• Supertranslations at Timelike Infinity
• Stress tensors of 3d Carroll CFTs
• Quantum Mechanics of a Spherically Symmetric Causal Diamond in Minkowski Spacetime
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• Horizon Hair from Inversion Symmetry
• On the covariant formulation of gauge theories with boundaries
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• Dynamical horizons and Super-Translation transitions of the horizon
• Counting Black Hole Microstates at Future Null Infinity
• Inducing supertranslations: The membrane picture
• The integrability of Virasoro charges for axisymmetric Killing horizons