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We explore the thermodynamic and phase transition properties of asymptotically AdS black holes within Einstein-Gauss-Bonnet gravity, focusing on Joule Thomson expansion. Thermodynamics is studied in the extended phase space, where the…

General Relativity and Quantum Cosmology · Physics 2024-10-01 Kartheek Hegde , A. Naveena Kumara , C. L. Ahmed Rizwan , Ajith K. M. , Md Sabir Ali , Shreyas Punacha

We investigate the universal behavior of black hole scalarization induced by a charged scalar field in the extended phase space of the asymptotic AdS spacetime with three distinct horizon topologies. The results indicate that in all the…

General Relativity and Quantum Cosmology · Physics 2025-11-25 Zi-Qiang Zhao , Zhang-Yu Nie , Shao-Wen Wei , Jing-Fei Zhang , Xin Zhang

A thermodynamical description for the quasi-static collapse of radiating, self-gravitating spherical shells of matter in anti-de Sitter space-time is obtained. It is shown that the specific heat at constant area and other thermodynamical…

General Relativity and Quantum Cosmology · Physics 2008-11-26 G. L. Alberghi , R. Casadio , G. Venturi

We study phase structures of Lorentzian Dyonic Taub-NUT-AdS spacetimes for different horizon geometries, which are spherical, flat, and hyperbolic. We check the consistency of our extended thermodynamics approach through satisfying the…

General Relativity and Quantum Cosmology · Physics 2024-04-16 Mohamed Tharwat , Amr AlBarqawy , Adel Awad , Esraa Elkhateeb

The thermodynamics of d5 AdS BHs with positive, negative or zero curvature spatial section in higher derivative (HD) gravity is described. HD contribution to free energy may change its sign which leads to more complicated regime for…

High Energy Physics - Theory · Physics 2009-09-17 Shin'ichi Nojiri , Sergei D. Odintsov

The Regular Phantom Black Holes (RPBH)s are of theoretical and observational importance, and some properties have been studied. In this work, we study some of the thermodynamical properties such as entropy, and temperature, ... in three…

General Relativity and Quantum Cosmology · Physics 2023-09-06 Maryam Haditale , Behrooz Malekolkalami

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

We analyze geometrothermodynamics of charged anti-de Sitter (AdS) black holes with a global monopole in the framework of Tsallis statistics. The latter arises from a non-additive generalization of Boltzmann-Gibbs entropy, which is still…

High Energy Physics - Theory · Physics 2024-12-17 Giuseppe Gaetano Luciano , Ahmad Sheykhi

We employ a thermodynamic analysis to determine the phase structure of Eguchi-Hanson solitons, Schwarzschild-AdS/$\mathbb{Z}_k$ black holes and thermal AdS/$\mathbb{Z}_k$. The Euclidean actions are calculated by two equable means: the first…

High Energy Physics - Theory · Physics 2009-11-17 Sean Stotyn , Robert Mann

The existence of a thermodynamic description of horizons indicates that spacetime has a microstructure. While the "fundamental" degrees of freedom remain elusive, quantizing Einstein's gravity provides some clues about their properties. A…

General Relativity and Quantum Cosmology · Physics 2009-09-28 Cenalo Vaz

Since the black hole and cosmological horizons in the de Sitter (dS) spacetime with the Reissner-Nordstrom (RN) black hole are not independent to each other, which is caused by the gravitational effect, the interplay between two horizons…

High Energy Physics - Theory · Physics 2022-10-19 Yun-Zhi Du , Huai-Fan Li , Ren Zhao

We discuss black hole solutions of Einstein gravity in presence of nonlinear electrodynamics in dS spacetime. Considering prescribed entropy, thermodynamic volume of dS spacetime, We investigate properties of the effective thermodynamic…

High Energy Physics - Theory · Physics 2017-08-22 Hui-Hua Zhao , Li-Chun Zhang , Fang Liu , Ren Zhao

This paper examines the thermodynamic properties and stability of deformed AdS-Schwarzschild black holes, focusing on the effects of deformation ($\alpha$) and thermal correction parameters ($\beta_1$, $\beta_2$) on phase transitions and…

High Energy Physics - Theory · Physics 2025-08-26 Dhruba Jyoti Gogoi , Poppy Hazarika , Jyatsnasree Bora , Ranjan Changmai

Thermodynamic fluctuation metrics in Ruppeiner's formalism are worked out for Kerr-AdS black holes in the extended state space. The implications of constraints upon the state space geometry and their correspondence with thermodynamical…

High Energy Physics - Theory · Physics 2017-06-07 Anurag Sahay

In this note, the off-shell generalized Abbott-Deser-Tekin (ADT) formalism is applied to explore the mass of Kerr-anti-de Sitter (Kerr-AdS) black holes in various dimensions within asymptotically rotating frames. The cases in four and five…

General Relativity and Quantum Cosmology · Physics 2023-05-23 Yi-De Jing , Jun-Jin Peng

In this paper, we investigate, in the framework of the topological approach to black hole thermodynamics, using the generalized off-shell Helmholtz free energy, the topological numbers of the static multi-charge AdS black holes in four- and…

High Energy Physics - Theory · Physics 2024-07-01 Di Wu , Shuang-Yong Gu , Xiao-Dan Zhu , Qing-Quan Jiang , Shu-Zheng Yang

We investigate the optical and thermodynamic properties of a deformed Schwarzschild Anti-de Sitter (AdS) black hole coupled to a cloud of strings and embedded in perfect fluid dark matter. We analyze the photon sphere and the corresponding…

General Relativity and Quantum Cosmology · Physics 2026-03-04 Faizuddin Ahmed , Carlos E. Romero-Figueroa , Hernando Quevedo

We investigate thermodynamic geometries of two families of asymptotically Anti-de Sitter black holes, i.e. the Reissner-Nordstr\"om Anti-de Sitter in four dimensions and the BTZ black hole. It is found that the Anti-de Sitter space renders…

General Relativity and Quantum Cosmology · Physics 2009-05-15 Jan E. Aman , Narit Pidokrajt , John Ward

We determine all spacetime flows which lead to a Hamiltonian dynamics in the space of general relativistic initial data sets with asymptotically Kerr-de Sitter ends. The corresponding Hamiltonians are calculated. Some implications for…

General Relativity and Quantum Cosmology · Physics 2015-10-21 Piotr T. Chruściel , Jacek Jezierski , Jerzy Kijowski

Under the premise that quantum gravity becomes non-negligible, higher-order corrections of non-commutative geometry dominate. In this paper, we studied the thermodynamics of high-order corrections for Schwarzschild-AdS black hole with…

General Relativity and Quantum Cosmology · Physics 2025-03-14 Baoyu Tan