Quantum gravitational corrections to the entropy of a Schwarzschild black hole

Calmet, Xavier and Kuipers, Folkert (2021) Quantum gravitational corrections to the entropy of a Schwarzschild black hole. Physical Review D: Particles, Fields, Gravitation and Cosmology, 104 (6). a066012. ISSN 1550-2368

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Abstract

We calculate quantum gravitational corrections to the entropy of black holes using the Wald entropy formula within an effective field theory approach to quantum gravity. The corrections to the entropy are calculated to second order in curvature and we calculate a subset of those at third order. We show that, at third order in curvature, interesting issues appear that had not been considered previously in the literature. The fact that the Schwarzschild metric receives corrections at this order in the curvature expansion has important implications for the entropy calculation. Indeed, the horizon radius and the temperature receive corrections. These corrections need to be carefully considered when calculating the Wald entropy.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
SWORD Depositor: Mx Elements Account
Depositing User: Mx Elements Account
Date Deposited: 05 Oct 2021 06:45
Last Modified: 02 Mar 2022 12:42
URI: http://sro.sussex.ac.uk/id/eprint/102112

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A network of clocks for measuring the stability of fundamental constantsG3285STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCILST/T006048/1
South-Eastern Particle Theory Alliance Sussex - RHUL - UCL 2020-2023 - Sussex nodeG2836STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCILST/T00102X/1