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In this paper, the phase structure of the Hayward-AdS black hole (BH) is studied using shadow formalism. It has been found that the shadow radius is a monotonic function of the horizon radius and can therefore play an equivalent role to the…

General Relativity and Quantum Cosmology · Physics 2023-05-03 Zhi Luo , Hao Yu , Shuo Cao , Jin Li

In this paper, we attempt to further study the heat engine efficiency for the regular black hole (BH) with an anti-de Sitter (AdS) background where the working material is the Hayward-AdS (HAdS) BH. In the extended phase space, we…

General Relativity and Quantum Cosmology · Physics 2021-05-10 Sen Guo , Ya-Ling Huang , Ke-Jian He , Guo-Ping Li

In a generalized parameter space, regular black holes can be regarded as non-singular solutions under specific parameters in Einstein gravity theory coupled with non-linear electromagnetic fields. Following this concept, we investigate the…

General Relativity and Quantum Cosmology · Physics 2024-12-13 Shan-Ping Wu , Shao-Wen Wei

We investigate the thermodynamic behavior of the Hayward-AdS black hole and compare it with its singular counterpart from which it can be constructed through the imposition of an additional constraint. The singular black hole displays a…

High Energy Physics - Theory · Physics 2026-02-13 Qi-Hang Xia , Hui-Hua Zhao , Meng-Sen Ma

We study the cooling-heating phase transition of the charged accelerating anti-de Sitter black hole in extended phase space, and investigate the critical behavior of this black hole in extended phase space. By calculating the thermodynamic…

High Energy Physics - Theory · Physics 2021-10-28 Sen Guo , Ya-Ling Huang , Guo-Ping Li

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

We study the thermodynamic behavior of static and spherically symmetric hairy black holes in massive gravity. In this case, the black hole is surrounded in a spherical cavity with a fixed temperature on the surface. It is observed that…

General Relativity and Quantum Cosmology · Physics 2015-06-23 Behrouz Mirza , Zeinab Sherkatghanad

The thermodynamics in the extended phase space of a quantum corrected black hole (BH) proposed recently is presented in this work. Our study shows that the phase transition behavior of the BH is analogous to that of conventional…

General Relativity and Quantum Cosmology · Physics 2025-08-25 Rui-Bo Wang , Lei You , Shi-Jie Ma , Jian-Bo Deng , Xian-Ru Hu

We investigate $P$-$V$ criticality, with a focus on Ruppeiner geometry, in the extended phase space of Hayward anti-de Sitter (AdS) black holes. Through thermodynamic analysis, we confirm that Hayward-AdS black holes undergo distinct…

General Relativity and Quantum Cosmology · Physics 2026-01-05 Haximjan Abdusattar

The dependence of the black hole (BH) shadow and thermodynamics may be structured in the regular spacetime. Taking the regular Bardeen-AdS BH as an example, the relationship between the shadow radius and the event horizon radius is derived.…

General Relativity and Quantum Cosmology · Physics 2022-09-14 Sen Guo , Guan-Ru Li , Guo-Ping Li

We explore the thermodynamic properties of the regular Bardeen-AdS black hole obtained by imposing an additional constraint on a singular "mother" black hole. This constraint eliminates the physical singularity but leads to the breakdown of…

High Energy Physics - Theory · Physics 2025-10-09 Meng-Sen Ma , Yun He , Xiao-Ming Wang , Huai-Fan Li

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

We discuss the intrinsic relations between thermodynamic phase transitions and quasinormal modes in regular AdS black holes, specifically in the Bardeen and Hayward AdS classes. To this end, we calculate the quasinormal modes of massless…

General Relativity and Quantum Cosmology · Physics 2024-06-18 Yang Guo , Hao Xie , Yan-Gang Miao

In this paper, we study the thermodynamics of Schwarzschild-anti-de Sitter black holes within the framework of non-commutative geometry. By solving the Einstein's equations, we derive the corrected Schwarzschild-AdS black hole with…

General Relativity and Quantum Cosmology · Physics 2025-04-14 Rui-Bo Wang , Shi-Jie Ma , Lei You , Jian-Bo Deng , Xian-Ru Hu

We explore the modified thermodynamics of a Hayward-Anti de Sitter (H-AdS) black hole in atypical conditions, incorporating a string fluid, Hayward regularisation, and quantum entropy corrections. Our analysis reveals a first-order phase…

General Relativity and Quantum Cosmology · Physics 2025-10-07 Shyamalee Bora , Dhruba Jyoti Gogoi , Pralay Kumar Karmakar

We investigate the Born-Infeld-anti-de Sitter black hole (BIAdS) solutions in the four dimensions, which is a nonlinear generalization of the Reissner-Norstr\"om-AdS black hole (RNAdS). We analyze all thermodynamic quantities of the BIAdS…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Yun Soo Myung , Yong-Wan Kim , Young-Jai Park

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

This paper studies the thermodynamical stability of regular BHs in AdS5 background. We investigate off-shell free energy of the system as a function of temperature for different values of a "coupling constant" L=4 theta/l^2, where the…

High Energy Physics - Theory · Physics 2015-06-12 Anais Smailagic , Euro Spallucci

We first study the thermodynamics of Bardeen-AdS black hole by the $T$-$r_{h}$ diagram, where T is the Hawking temperature and $r_{h}$ is the radius of event horizon. The cut-off radius which is the minimal radius of the thermodynamical…

High Energy Physics - Theory · Physics 2019-12-30 Cong Li , Chao Fang , Miao He , Jiacheng Ding , Ping Li , Jianbo Deng

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
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