Thermodynamics of the Kerr-AdS black hole from an ensemble-averaged theory
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arXiv
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| Format: | Preprint |
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2024
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| author | Cheng, Peng Pan, Jindong Xu, Haichen Yang, Si-Jiang |
| author_facet | Cheng, Peng Pan, Jindong Xu, Haichen Yang, Si-Jiang |
| contents | Exploring the universal structure of the gravitational path integral beyond semi-classical saddles and uncovering a compelling statistical interpretation of black hole thermodynamics have long been significant challenges. We investigate the statistical interpretation of the Kerr-AdS black hole thermodynamics through an ensemble-averaged theory. By extending the phase space to include all possible states with conical singularities in their Euclidean counterparts, we derive the probability distribution of different states inherited from the Euclidean gravitational path integral. Moreover, we can define a density matrix of all states in the phase space. By ensemble-averaging over all states, we show that the black hole phase transition naturally arises in the semi-classical limit. Away from the semi-classical regime, the ensemble-averaged theory exhibits a notable deviation from the conventional phase transition. Expanding around the classical saddles yields the subleading-order correction to the Gibbs free energy, which is half of the Hawking temperature. We demonstrate that the half Hawking temperature correction is a universal feature inherent to black holes in asymptotically AdS spacetime. With the subleading-order correction to Gibbs free energy, we also suggest that the whole black hole thermodynamic should be corrected accordingly. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_23006 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Thermodynamics of the Kerr-AdS black hole from an ensemble-averaged theory Cheng, Peng Pan, Jindong Xu, Haichen Yang, Si-Jiang High Energy Physics - Theory General Relativity and Quantum Cosmology Exploring the universal structure of the gravitational path integral beyond semi-classical saddles and uncovering a compelling statistical interpretation of black hole thermodynamics have long been significant challenges. We investigate the statistical interpretation of the Kerr-AdS black hole thermodynamics through an ensemble-averaged theory. By extending the phase space to include all possible states with conical singularities in their Euclidean counterparts, we derive the probability distribution of different states inherited from the Euclidean gravitational path integral. Moreover, we can define a density matrix of all states in the phase space. By ensemble-averaging over all states, we show that the black hole phase transition naturally arises in the semi-classical limit. Away from the semi-classical regime, the ensemble-averaged theory exhibits a notable deviation from the conventional phase transition. Expanding around the classical saddles yields the subleading-order correction to the Gibbs free energy, which is half of the Hawking temperature. We demonstrate that the half Hawking temperature correction is a universal feature inherent to black holes in asymptotically AdS spacetime. With the subleading-order correction to Gibbs free energy, we also suggest that the whole black hole thermodynamic should be corrected accordingly. |
| title | Thermodynamics of the Kerr-AdS black hole from an ensemble-averaged theory |
| topic | High Energy Physics - Theory General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2410.23006 |