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In this paper, we consider the effect of thermal fluctuations on the entropy of both neutral and charged black holes. We emphasize the distinction between fixed and fluctuating charge systems; using a canonical ensemble to describe the…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Gilad Gour , A. J. M. Medved

We study the perturbative behaviour of charged topological-AdS black holes. We calculate both analytically and numerically the quasi-normal modes of the electromagnetic and gravitational perturbations. Keeping the charge-to-mass ratio…

High Energy Physics - Theory · Physics 2009-12-15 George Koutsoumbas , Eleftherios Papantonopoulos , George Siopsis

In this paper, we consider an $\alpha^{\prime}$ corrected Reissner-Nordstr\"{o}m AdS black hole to study thermodynamics. We study the $P-V$ criticality and thermodynamical stability of the black hole. We obtained a first-order phase…

High Energy Physics - Theory · Physics 2024-07-15 Behnam Pourhassan , Sareh Eslamzadeh , Izzet Sakallı , Sudhaker Upadhyay

We study the thermodynamics of the Taub-NUT AdS black holes by Visser holographic method using AdS radius as a constant parameter under the restricted phase space approach. Instead of the variables $P$ and $V$, we deal with the central…

High Energy Physics - Theory · Physics 2022-10-18 Jafar Sadeghi , Mehdi Shokri , Saeed Noori Gashti , Mohammad Reza Alipour

The extended thermodynamics of Reissner-Nordstr\"om charged black holes in D-dimensional anti-de Sitter spacetime has a phase structure in the (T,p) plane that includes a line of first order phase transitions ending in a second order…

High Energy Physics - Theory · Physics 2018-12-07 Clifford V. Johnson

In this paper, we attempt to study the Joule-Thomson expansion for the regular black hole in an anti-de Sitter background, and obtain the inversion temperature and curve for the Bardeen-AdS black hole in the extended phase space. We…

General Relativity and Quantum Cosmology · Physics 2020-05-08 Jin Pu , Sen Guo , Qing-Quan Jiang , Xiao-Tao Zu

The path integral approach to a quantum theory of gravity is widely regarded as an indispensable strategy. However, determining what additional elements, beyond black hole or AdS spacetime, should be incorporated into the path integral…

General Relativity and Quantum Cosmology · Physics 2025-04-07 Peng Cheng , Yu-Xiao Liu , Shao-Wen Wei

The aim of this letter is to study the universal thermodynamics and criticality of charged AdS black holes with string clouds in the bulk and in the boundary conformal field theory (CFT). For this system, we determined the critical…

High Energy Physics - Theory · Physics 2025-04-30 Aditya Singh , Sandip Mahish

We study the hololgraphic dual of the extended thermodynamics of spherically symmetric, charged AdS black holes in the context of the AdS/CFT correspondence. The gravitational thermodynamics of AdS black holes can be extended by allowing…

High Energy Physics - Theory · Physics 2022-09-07 Wan Cong , David Kubiznak , Robert Mann , Manus Visser

The phase transitions of charged Anti-de Sitter (AdS) black holes are characterized by studying null geodesics in the vicinity of the critical curve of photon trajectories around black holes as well as their optical appearance as the black…

General Relativity and Quantum Cosmology · Physics 2024-09-04 Chatchai Promsiri , Weerawit Horinouchi , Ekapong Hirunsirisawat

We investigate the thermodynamic phase structure of four-dimensional \textit{R}-charged black holes--characterized by four independent $U(1)$ charges--through the lens of Lyapunov exponents associated with unstable circular orbits of both…

General Relativity and Quantum Cosmology · Physics 2025-05-28 Mozib Bin Awal , Prabwal Phukon

Motivated by certain recent works, we study thermodynamic and optical properties of the Reissner-Nordstr\"om-AdS black holes in a noncommutative spacetime with a string cloud and quintessence dark fields. After analyzing the global and the…

High Energy Physics - Theory · Physics 2025-09-16 Saad Eddine Baddis , Adil Belhaj , Hajar Belmahi , Wijdane El Hadri , Maryem Jemri

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 work, the microstructure of charged AdS black holes under minimal length effects is investigated. We study the thermodynamics of black holes in the extended phase space, where the cosmological constant is regarded as the…

General Relativity and Quantum Cosmology · Physics 2022-12-14 Ningchen Bai , Aoyun He , Jun Tao

We investigate consistent charged black hole solutions to the Einstein-Maxwell-Dilaton (EMD) equations that are asymptotically AdS. The solutions are gravity duals to phases of a non-conformal plasma at finite temperature and density. For…

High Energy Physics - Theory · Physics 2020-12-07 Alfonso Ballon-Bayona , Henrique Boschi-Filho , Eduardo Folco Capossoli , Diego M. Rodrigues

In order to study the phase transition through thermodynamic geometry, we consider the charged AdS black hole with global monopole. We first introduce thermodynamics of charged AdS black hole with global monopole by discussing the…

General Relativity and Quantum Cosmology · Physics 2020-03-19 Saheb Soroushfar , Sudhaker Upadhyay

We demonstrate that the finite-temperature critical transverse-field Ising chain exhibits quantitative signatures of black-hole physics in its dual gravitational description within the AdS/CFT correspondence. Its finite-temperature dynamics…

Quantum Physics · Physics 2026-03-10 Zuo Wang , Liang He

We study the thermodynamics in the grand canonical ensemble of D-dimensional charged Gauss-Bonnet-AdS black holes in the extended phase space. We find that the usual small-large black hole phase transition, which exhibits analogy with the…

High Energy Physics - Theory · Physics 2015-06-19 De-Cheng Zou , Yunqi Liu , Bin Wang

In this paper, by proposing a generalized $specific~volume$, we restudy the $P-V$ criticality of charged AdS black holes in the extended phase space. The results show that most of the previous conclusions can be generalized without change,…

General Relativity and Quantum Cosmology · Physics 2017-03-16 Ziliang Wang , Miao He , Chao Fang , Daoquan Sun , Jianbo Deng

In this work, we investigate the thermodynamical properties of accelerated charged Anti-de Sitter black holes in the context of rainbow gravity. Concretely, we compute the corresponding quantities needed to study the thermal stability and…

General Relativity and Quantum Cosmology · Physics 2025-07-16 Hajar Belmahi , Maryem Jemri , Rajaa Salih