Selected Honorable Mention EssaysNo Access

Universally stable black holes

Pablo Bueno

Instituut voor Theoretische Fysica, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium

E-mail Address: pablo@itf.fys.kuleuven.be

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and

Pablo A. Cano

Instituto de Física Teórica UAM/CSIC, C/Nicolás Cabrera, 13-15, C.U. Cantoblanco, 28049 Madrid, Spain

E-mail Address: pablo.cano@uam.es

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https://doi.org/10.1142/S0218271817430246Cited by:1 (Source: Crossref)

Abstract

We argue that, when certain higher-curvature corrections are added to the four-dimensional Einstein–Hilbert action, black holes become stable below certain mass. We show this to be the case for an infinite family of ghost-free theories involving terms of arbitrarily high order in curvature. The thermodynamic behavior of the new black holes is universal for arbitrary values of the couplings, with the only exception of the Schwarzschild solution itself, which is recovered when all the couplings are set to zero. For this class of theories, the issue of non-unitary evolution is inexistent, as black holes never evaporate completely.

This essay received an Honorable Mention in the 2017 Essay Competition of the Gravity Research Foundation.

Keywords:

PACS: 04.50.Kd, 04.70.Dy, 04.70.Bw

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