Quantum gravitational corrections to the entropy of a Reissner–Nordström black hole

Abstract Starting from an effective action for quantum gravity, we calculate the quantum gravitational corrections to the Wald entropy of a four dimensional non-extremal Reissner–Nordström (RN) black hole in the limit of small electric charge, generalising a previous calculation carried out by Calme...

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Main Author: Ruben Campos Delgado
Format: Article
Language:English
Published: SpringerOpen 2022-03-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-022-10232-0
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author Ruben Campos Delgado
author_facet Ruben Campos Delgado
author_sort Ruben Campos Delgado
collection DOAJ
description Abstract Starting from an effective action for quantum gravity, we calculate the quantum gravitational corrections to the Wald entropy of a four dimensional non-extremal Reissner–Nordström (RN) black hole in the limit of small electric charge, generalising a previous calculation carried out by Calmet and Kuipers (Phys Rev D 104(6):066012, 2021) for a Schwarzschild black hole. We show that, at second order in the Ricci curvature, the RN metric receives quantum corrections which shift the classical position of the event horizon. We apply the Wald entropy formula by integrating over the perimeter of the quantum corrected event horizon. We then compute the quantum gravitational corrections to the temperature and the pressure of the black hole.
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spelling doaj.art-2cb879c388c8403399938477ca3155942023-06-11T11:23:39ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522022-03-018231810.1140/epjc/s10052-022-10232-0Quantum gravitational corrections to the entropy of a Reissner–Nordström black holeRuben Campos Delgado0Bethe Center for Theoretical Physics, Physikalisches Institut der Universität BonnAbstract Starting from an effective action for quantum gravity, we calculate the quantum gravitational corrections to the Wald entropy of a four dimensional non-extremal Reissner–Nordström (RN) black hole in the limit of small electric charge, generalising a previous calculation carried out by Calmet and Kuipers (Phys Rev D 104(6):066012, 2021) for a Schwarzschild black hole. We show that, at second order in the Ricci curvature, the RN metric receives quantum corrections which shift the classical position of the event horizon. We apply the Wald entropy formula by integrating over the perimeter of the quantum corrected event horizon. We then compute the quantum gravitational corrections to the temperature and the pressure of the black hole.https://doi.org/10.1140/epjc/s10052-022-10232-0
spellingShingle Ruben Campos Delgado
Quantum gravitational corrections to the entropy of a Reissner–Nordström black hole
European Physical Journal C: Particles and Fields
title Quantum gravitational corrections to the entropy of a Reissner–Nordström black hole
title_full Quantum gravitational corrections to the entropy of a Reissner–Nordström black hole
title_fullStr Quantum gravitational corrections to the entropy of a Reissner–Nordström black hole
title_full_unstemmed Quantum gravitational corrections to the entropy of a Reissner–Nordström black hole
title_short Quantum gravitational corrections to the entropy of a Reissner–Nordström black hole
title_sort quantum gravitational corrections to the entropy of a reissner nordstrom black hole
url https://doi.org/10.1140/epjc/s10052-022-10232-0
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