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We take a bottom-up approach to find the interaction potential between the $AdS$ black hole molecules under mean-field approximation. We start with the equation of state of dyonic $AdS$ black holes in fixed charge ensemble and use the…

High Energy Physics - Theory · Physics 2021-12-16 Suvankar Dutta , Gurmeet Singh Punia

The Ruppeiner geometry of thermodynamic fluctuations provides a powerful diagnostic of black hole microstructures. We investigate this for charged AdS black holes and find that while an attractive microstructure interaction dominates for…

General Relativity and Quantum Cosmology · Physics 2019-08-21 Shao-Wen Wei , Yu-Xiao Liu , Robert B. Mann

Originally considered for van der Waals fluids and charged black holes [Phys. Rev. Lett. 123, 071103 (2019)], we extend and generalize our approach to higher-dimensional charged AdS black holes. Beginning with thermodynamic fluctuations, we…

General Relativity and Quantum Cosmology · Physics 2019-12-24 Shao-Wen Wei , Yu-Xiao Liu , Robert B. Mann

We review recent studies of contact and thermodynamic geometry for black holes in AdS spacetimes in the extended thermodynamics framework. The cosmological constant gives rise to the notion of pressure $P = -\Lambda / 8 \pi$ and,…

General Relativity and Quantum Cosmology · Physics 2023-02-10 Aritra Ghosh , Chandrasekhar Bhamidipati

The phase transition and thermodynamic geometry of a 4-dimensional AdS topological charged black hole in de Rham, Gabadadze and Tolley (dRGT) massive gravity have been studied. After introducing a normalized thermodynamic scalar curvature,…

General Relativity and Quantum Cosmology · Physics 2021-08-31 Bin Wu , Chao Wang , Zhen-Ming Xu , Wen-Li Yang

The microscopic structure of black holes remains a challenging subject. In this paper, based on the well-accepted fact that black holes can be mapped to thermodynamic systems, we make a preliminary exploration of the microscopic structure…

High Energy Physics - Theory · Physics 2018-08-07 Yan-Gang Miao , Zhen-Ming Xu

It has been argued that charged Ads black holes have similar thermodynamic behavior as the Van der Waals fluid system, provided one treats the cosmological constant as a thermodynamic variable in an extended phase space. In this paper, we…

General Relativity and Quantum Cosmology · Physics 2017-03-22 Amin Dehyadegari , Ahmad Sheykhi , Afshin Montakhab

Thermodynamics of Bardeen AdS black holes has attracted a great deal of attentions due to its intrinsic complications and rich phase structures. However, the entropy and thermodynamic volume are incorrect in some literatures. In this paper…

General Relativity and Quantum Cosmology · Physics 2022-05-24 Yang Guo , Yan-Gang Miao

Inspired by the hypothesis of the black hole molecule, with the help of the Hawking temperature, entropy and the thermodynamics curvature of the black hole, we propose a new measure of the relation between the interaction and the thermal…

General Relativity and Quantum Cosmology · Physics 2021-01-22 Zhen-Ming Xu , Bin Wu , Tao Yang , Wen-Li Yang

In this paper, we study the thermodynamic geometry of charged Gauss-Bonnet black holes (and Reissner-Nordstr\"{o}m black holes, for the sake of comparison) in AdS: in both $(T,V)$- and $(S,P)$-planes. The thermodynamic phase space is known…

General Relativity and Quantum Cosmology · Physics 2020-05-11 Aritra Ghosh , Chandrasekhar Bhamidipati

Employing the thermodynamic geometry approach, we explore phase transition of four dimensional spinning black holes in an anti-de Sitter (AdS) spaces and found the following novel results. (i) Contrary to the charged AdS black hole,…

High Energy Physics - Theory · Physics 2021-12-02 Amin Dehyadegari , Ahmad Sheykhi

In the AdS/CFT correspondence, a dynamical cosmological constant $\Lambda$ in the bulk corresponds to varying the number of colors $N$ in the boundary gauge theory with a chemical potential $\mu$ as its thermodynamic conjugate. In this…

High Energy Physics - Theory · Physics 2020-11-20 Sandip Mahish , Aritra Ghosh , Chandrasekhar Bhamidipati

The phase transition of Reissner-Nordstr\"om black holes in $(n+1)$-dimensional anti-de Sitter spacetime is studied in details using the thermodynamic analogy between a RN-AdS black hole and a van der Waals liquid gas system. We first…

High Energy Physics - Theory · Physics 2015-03-19 Chao Niu , Yu Tian , Xiaoning Wu

Comparing with an ordinary thermodynamic system, we investigate the possible microscopic structure of a charged anti-de Sitter black hole completely from the thermodynamic viewpoint. The number density of the black hole molecules is…

General Relativity and Quantum Cosmology · Physics 2015-09-18 Shao-Wen Wei , Yu-Xiao Liu

We study the thermodynamics and the chemical potential for a five-dimensional charged AdS black hole by treating the cosmological constant as the number of colors $N$ in the boundary gauge theory and its conjugate quantity as the associated…

General Relativity and Quantum Cosmology · Physics 2017-12-20 Shao-Wen Wei , Bin Liang , Yu-Xiao Liu

In this paper, we visit the thermodynamic criticality and thermodynamic curvature of the charged AdS black hole in a new phase space. It is shown that when the square of the total charge of the charged black hole is considered as a…

General Relativity and Quantum Cosmology · Physics 2021-01-01 Zhen-Ming Xu

We suggest a new thermodynamic curvature, constructed via adiabatic compressibility, for examining the internal microstructure of charged black holes in an anti-de Sitter (AdS) background. We analyze the microscopic properties of…

General Relativity and Quantum Cosmology · Physics 2020-11-10 Amin Dehyadegari , Ahmad Sheykhi , Shao-Wen Wei

Ruppeiner geometry has been found to be a novel promising approach to uncover the microstructure of fluid systems and black holes. In this work, combining with the micro model of the Van der Waals fluid, we shall propose a first microscopic…

General Relativity and Quantum Cosmology · Physics 2021-08-26 Shao-Wen Wei , Yu-Xiao Liu , Robert B. Mann

In this paper, we study the phase structure and equilibrium state space geometry of charged topological Gauss-Bonnet black holes in $d$-dimensional anti-de Sitter spacetime. Several critical points are obtained in the canonical ensemble,…

General Relativity and Quantum Cosmology · Physics 2013-02-12 Shao-Wen Wei , Yu-Xiao Liu

Thermodynamic geometry analysis of interesting Letter [Phys. Rev. Lett. 115, 111302 (2015)] for charged AdS black holes, which is based on studying the Ruppeiner invariant behavior is not correct and the authors made a mistake in…

High Energy Physics - Theory · Physics 2016-03-03 M. Kord Zangeneh , A. Dehyadegari , A. Sheykhi
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