Gauss-Bonnet entropy and thermal dynamics of RN-AdS black holes

Fuente: arXiv
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Autori principali: Bhatti, M. Z., Bamba, Kazuharu, Siddique, I., Almutairi, Bander, Yousaf, Z.
Natura: Preprint
Pubblicazione: 2025
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author Bhatti, M. Z.
Bamba, Kazuharu
Siddique, I.
Almutairi, Bander
Yousaf, Z.
author_facet Bhatti, M. Z.
Bamba, Kazuharu
Siddique, I.
Almutairi, Bander
Yousaf, Z.
contents We explore the thermodynamics of a novel solution for the Reissner-Nordström-Anti-de Sitter (AdS) black hole, uniquely incorporating the Gauss-Bonnet term. Unlike previous studies that primarily focused on standard General Relativity or other modifications, this inclusion allows for a modified entropy formulation, facilitating the computation of key thermodynamic quantities such as Gibbs free energy, the first law of thermodynamics, the equation of state, and Hawking temperature. We identify critical points and graphically represent the relationship between temperature and Gibbs free energy as a function of the horizon radius. Ultimately, we assess the thermal stability of the Reissner-Nordström-AdS black hole within the framework of Gauss-Bonnet gravity, emphasizing the influence of the Gauss-Bonnet term unlike previous studies that primarily focused on standard General Relativity or other modifications. As a result, it is found that the Gauss-Bonnet coupling significantly alters the thermodynamic behavior and stability structure of the black hole, revealing richer phase transition phenomena.
format Preprint
id arxiv_https___arxiv_org_abs_2510_20183
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Gauss-Bonnet entropy and thermal dynamics of RN-AdS black holes
Bhatti, M. Z.
Bamba, Kazuharu
Siddique, I.
Almutairi, Bander
Yousaf, Z.
General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
We explore the thermodynamics of a novel solution for the Reissner-Nordström-Anti-de Sitter (AdS) black hole, uniquely incorporating the Gauss-Bonnet term. Unlike previous studies that primarily focused on standard General Relativity or other modifications, this inclusion allows for a modified entropy formulation, facilitating the computation of key thermodynamic quantities such as Gibbs free energy, the first law of thermodynamics, the equation of state, and Hawking temperature. We identify critical points and graphically represent the relationship between temperature and Gibbs free energy as a function of the horizon radius. Ultimately, we assess the thermal stability of the Reissner-Nordström-AdS black hole within the framework of Gauss-Bonnet gravity, emphasizing the influence of the Gauss-Bonnet term unlike previous studies that primarily focused on standard General Relativity or other modifications. As a result, it is found that the Gauss-Bonnet coupling significantly alters the thermodynamic behavior and stability structure of the black hole, revealing richer phase transition phenomena.
title Gauss-Bonnet entropy and thermal dynamics of RN-AdS black holes
topic General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
url https://arxiv.org/abs/2510.20183