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Quantum BTZ black hole
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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.
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EMPARAN GARCÍA DE SALAZAR, Roberto a., MICOL FRASSINO, Antonia, WAY, Benson. Quantum BTZ black hole. _Journal of High Energy Physics_. 2020. Vol. 11, núm. 137. [consulta: 14 de gener de 2026]. ISSN: 1126-6708. [Disponible a: https://hdl.handle.net/2445/179452]