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Interpreting the cosmological constant as the energy of the vacuum and using a gravitational decoupling approach leads to a new Kerr--anti-de Sitter (AdS) black hole. The metric of the new Kerr--AdS is simpler than the standard Kerr--AdS…

General Relativity and Quantum Cosmology · Physics 2024-11-07 Suhail Khan , Shafqat Ul Islam , Sushant G. Ghosh , Sunil D. Maharaj

We probe the phase structure of the regular AdS black holes using the null geodesics. The radius of photon orbit and minimum impact parameter shows a non-monotonous behaviour below the critical values of the temperature and the pressure,…

General Relativity and Quantum Cosmology · Physics 2020-11-04 A. Naveena Kumara , C. L. Ahmed Rizwan , Shreyas Punacha , Ajith K. M. , Md Sabir Ali

The phase structure of charged Anti-de Sitter black hole in massive gravity is investigated using the unstable circular photon orbits formalism, concretely we establish a direct link between the null geodesics and the critical behavior…

High Energy Physics - Theory · Physics 2020-02-12 M. Chabab , H. El Moumni , S. Iraoui , K. Masmar

We study the relationship between the null geodesics and thermodynamic phase transition for the charged AdS black hole. In the reduced parameter space, we find that there exist non-monotonic behaviors of the photon sphere radius and the…

General Relativity and Quantum Cosmology · Physics 2018-05-23 Shao-Wen Wei , Yu-Xiao Liu

In this review we summarize, expand, and set in context recent developments on the thermodynamics of black holes in extended phase space, where the cosmological constant is interpreted as thermodynamic pressure and treated as a…

High Energy Physics - Theory · Physics 2014-01-28 Natacha Altamirano , David Kubiznak , Robert B. Mann , Zeinab Sherkatghanad

In this paper, we investigate the phase structure of a nonminimal coupled magnetic AdS black hole by connecting its thermodynamic properties with the dynamical behavior of orbiting particles, within the framework of Lyapunov exponent and…

General Relativity and Quantum Cosmology · Physics 2025-10-16 R. H. Ali , Zi-Yu Tang , Xiao-Mei Kuang

Black hole thermodynamics is a crucial and foundational aspect of black hole physics, yet its observational verification remains exceptionally challenging. The photon sphere of a black hole, a manifestation of strong gravitational effects,…

General Relativity and Quantum Cosmology · Physics 2025-12-29 Si-Jiang Yang , Shan-Ping Wu , Shao-Wen Wei , Yu-Xiao Liu

We study the thermodynamics of the Ay\'{o}n-Beato-Garc\'{i}a black hole and the relationship between photon orbits and the thermodynamic phase transitions of the black hole in AdS spacetime. We then examine the interactions between the…

General Relativity and Quantum Cosmology · Physics 2025-10-08 Kartheek Hegde , A. Naveena Kumara , C. L. Ahmed Rizwan , Md Sabir Ali , Shreyas Punacha , K. M. Ajith

The thermodynamics for Kerr-AdS black hole in four dimensions is revisited using the recently proposed restricted phase space formalism, which includes the central charge $C$ of the dual CFT and the chemical potential $\mu$, but excludes…

High Energy Physics - Theory · Physics 2022-02-08 Zeyuan Gao , Xiangqing Kong , Liu Zhao

Modified gravity theories are of great interest in both observational and theoretical studies. In this article we study the correlation between the null geodesics in the background of a four-dimensional Einstein-Maxwell-Gauss-Bonnet AdS…

General Relativity and Quantum Cosmology · Physics 2021-05-19 Kartheek Hegde , A. Naveena Kumara , C. L. Ahmed Rizwan , Md Sabir Ali , Ajith K. M

We study the thermodynamics of four-dimensional Kerr-Newman-AdS black holes both in the canonical and the grand-canonical ensemble. The stability conditions are investigated, and the complete phase diagrams are obtained, which include the…

High Energy Physics - Theory · Physics 2009-10-31 Marco M. Caldarelli , Guido Cognola , Dietmar Klemm

In this paper, we study thermodynamics, thermal fluctuations, phase transitions and the charged anti-de Sitter black hole surrounded by perfect fluid dark matter. Large black holes are shown to be stable when subject to thermal…

General Relativity and Quantum Cosmology · Physics 2023-05-31 G. Abbas , R. H. Ali

In this study, we advance the understanding of thermodynamic properties and phase transitions in rotating anti-de Sitter (AdS) black holes by applying the Kaniadakis(KD) entropy framework. This framework represents a non-extensive…

General Relativity and Quantum Cosmology · Physics 2025-03-13 Bidyut Hazarika , Amijit Bhattacharjee , Prabwal Phukon

We analyze thermodynamic properties of the rotating regular black holes having mass ($M$), angular momentum ($a$), and a magnetic charge $(g)$, and encompass Kerr black hole ($g=0$). The mass $M$ has a minimum at the radius…

General Relativity and Quantum Cosmology · Physics 2022-04-21 Md Sabir Ali , Sushant G Ghosh

In this paper, we investigate the phase transitions and critical behavior of a nonlinear magnetically charged rotating AdS black hole, with a particular emphasis on the influence of a quintessence field. Our comprehensive thermodynamic…

High Energy Physics - Theory · Physics 2024-10-18 Hayat. Laassiri , Ahmed. Daassou , Rachid. Benbrik

Multi-spinning higher dimensional Kerr-AdS black holes admit the stable small-large black hole phase transition of van der Waals type. In this paper, we study the exact critical phenomena and phase structure in five-dimensional spacetime.…

General Relativity and Quantum Cosmology · Physics 2019-09-27 Shao-Wen Wei , Yu-Xiao Liu

Thermodynamics of rotating black holes described by the R\'enyi formula as equilibrium and zeroth law compatible entropy function is investigated. We show that similarly to the standard Boltzmann approach, isolated Kerr black holes are…

General Relativity and Quantum Cosmology · Physics 2017-12-29 Viktor G. Czinner , Hideo Iguchi

Relations between photon orbits and thermodynamical phase transitions are explored in Born-Infeld-dilaton-AdS black hole. The coupling between the electromagnetic field and the dialton field is chosen such that the full phase diagram…

High Energy Physics - Theory · Physics 2020-04-22 Haitang Li , Yong Chen , Shao-Jun Zhang

We obtain an exact solution of spherically symmetric Letelier AdS black holes immersed in perfect fluid dark matter (PFDM). Considering the cosmological constant as the positive pressure of the system and volume as its conjugate variable,…

General Relativity and Quantum Cosmology · Physics 2024-03-26 Ashima Sood , Md Sabir Ali , J. K. Singh , Sushant G. Ghosh

The thermodynamics of the Kerr-AdS black hole is reformulated within the context of the formalism of geometrothermodynamics (GTD) and the cosmological constant is considered as a new thermodynamical parameter. We conclude that the mass of…

General Relativity and Quantum Cosmology · Physics 2012-04-18 Alexis Larranaga , Sindi Mojica
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