scholarly journals Quantum black hole entropy from 4d supersymmetric Cardy formula

2019 ◽  
Vol 100 (2) ◽  
Author(s):  
Masazumi Honda
Keyword(s):  
Black Hole ◽  
Black Hole Entropy ◽  
Quantum Black Hole ◽  
Cardy Formula

scholarly journals Quantum black hole entropy and Newton constant renormalization

1995 ◽  
Vol 52 (8) ◽  
pp. 4527-4539 ◽  
Author(s):  
J. L. F. Barbón ◽  
R. Emparan
Keyword(s):  
Black Hole ◽  
Black Hole Entropy ◽  
Quantum Black Hole

scholarly journals TOWARDS A THEORY OF QUANTUM BLACK HOLES

2002 ◽  
Vol 17 (06n07) ◽  
pp. 979-988 ◽  
Author(s):  
VICTOR BEREZIN
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Mass Spectrum ◽  
Gravitational Collapse ◽  
Black Hole Entropy ◽  
Black Hole Mass ◽  
Quantum Black Hole ◽  
Classical Analog ◽  
Hole Model ◽  
Specific Quantum

We describe some specific quantum black hole model. It is pointed out that the origin of a black hole entropy is the very process of quantum gravitational collapse. The quantum black hole mass spectrum is extracted from the mass spectrum of the gravitating source. The classical analog of quantum black hole is constructed.

Entropy of near-extremal rotating charged black holes in four-dimensional supergravity from AdS2/CFT1 correspondence

2014 ◽  
Vol 29 (13) ◽  
pp. 1450079
Author(s):  
Jun-Jin Peng ◽  
Qing-Ping Hu
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Central Charge ◽  
Conformal Symmetry ◽  
Black Hole Entropy ◽  
Extremal Black Hole ◽  
Charged Black Holes ◽  
Rotating Black Holes ◽  
Cardy Formula ◽  
Asymptotic Symmetries

We study microscopic entropy of the near-extremal rotating black hole in four-dimensional (4D) 𝒩 = 2 supergravity with four charges set pairwise equal from AdS2/CFT1 correspondence. This correspondence is realized in terms of asymptotic symmetries of the AdS2 geometry and a two-dimensional near-horizon effective quantum theory of residual fields from a dimensional reduction proposed by Robinson and Wilczek. We compute the relevant central charge and derive the microscopic entropy of this near-extremal black hole by Cardy formula. Our results can be extended to more general near-extremal rotating black holes in 4D supergravity. They further support the notion that black hole entropy is generally controlled by near-horizon conformal symmetry.

scholarly journals Quantum BTZ black hole

2020 ◽  
Vol 2020 (11) ◽  
Author(s):  
Roberto Emparan ◽  
Antonia Micol Frassino ◽  
Benson Way
Keyword(s):  
Black Hole ◽  
Stress Tensor ◽  
Three Dimensional ◽  
Black Hole Entropy ◽  
Btz Black Hole ◽  
Dimensional Solution ◽  
Quantum Black Hole ◽  
Strongly Coupled ◽  
Conformal Fields

Abstract We study a holographic construction of quantum rotating BTZ black holes that incorporates the exact backreaction from strongly coupled quantum conformal fields. It is based on an exact four-dimensional solution for a black hole localized on a brane in AdS4, first discussed some years ago but never fully investigated in this manner. Besides quantum CFT effects and their backreaction, we also investigate the role of higher-curvature corrections in the effective three-dimensional theory. We obtain the quantum-corrected geometry and the renormalized stress tensor. We show that the quantum black hole entropy, which includes the entanglement of the fields outside the horizon, satisfies the first law of thermodynamics exactly, even in the presence of backreaction and with higher-curvature corrections, while the Bekenstein-Hawking-Wald entropy does not. This result, which involves a rather non-trivial bulk calculation, shows the consistency of the holographic interpretation of braneworlds. We compare our renormalized stress tensor to results derived for free conformal fields, and for a previous holographic construction without backreaction effects, which is shown to be a limit of the solutions in this article.

scholarly journals Quantum black hole entropy

1998 ◽  
Vol 439 (3-4) ◽  
pp. 267-270 ◽  
Author(s):  
Romesh K. Kaul ◽  
Parthasarathi Majumdar
Keyword(s):  
Black Hole ◽  
Black Hole Entropy ◽  
Quantum Black Hole
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