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We investigate the three-dimensional behavior of gravity coupled to a dynamical unit timelike vector: the aether, and present two new classes of exact charged solutions. When c_{13}=0,\Lambda'=0$, we find the solutions is the usual BTZ…

广义相对论与量子宇宙学 · 物理学 2017-03-28 Chikun Ding , Changqing Liu , Anzhong Wang , Jiliang Jing

The entropy of the universe might decrease if black holes did not have entropy. Hawking's derivation of black hole temperature and the first law of thermodynamics suggest that black holes indeed have entropy. However, Einstein's classical…

高能物理 - 理论 · 物理学 2024-09-09 Siyul Lee

This study investigates the thermodynamics of phantom BTZ black holes by incorporating leading-order perturbative corrections arising from small statistical fluctuations around equilibrium. Starting from the phantom BTZ black holes review,…

高能物理 - 理论 · 物理学 2025-08-26 Kumar Sambhav Upadhyay , Sudhaker Upadhyay , Bhabani Prasad Mandal

In general, the field equation of $f(R)$ gravitational theory is very intricate, and therefore, it is not an easy task to derive analytical solutions. We consider rotating black hole spacetime four-dimensional in the $f(R)$ gravitational…

广义相对论与量子宇宙学 · 物理学 2023-06-14 G. L. N. Nashed , Shin'ichi Nojiri

We explore black hole solutions in the context of Born-Infeld-f(R) gravity, a modified gravitational framework that extends both Born-Infeld and f(R) theories. By adopting a static, spherically symmetric spacetime ansatz, we derive an exact…

广义相对论与量子宇宙学 · 物理学 2026-04-16 Salih Kibaroğlu

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…

广义相对论与量子宇宙学 · 物理学 2023-05-31 G. Abbas , R. H. Ali

We investigate electrically charged black holes in $(2+1)$ dimensional gravity coupled to nonlinear electrodynamics (NED). The metric function $f(r)$ is depicted, showing that there can be one or two horizons. We study black hole…

广义相对论与量子宇宙学 · 物理学 2024-07-02 Prosenjit Paul , S. I. Kruglov

We explore the quadratic form of the $f(R)=R+bR^2$ gravitational theory to derive rotating $N$-dimensions black hole solutions with $a_i, i\geq 1$ rotation parameters. Here, $R$ is the Ricci scalar, and $b$ is the dimensional parameter. We…

广义相对论与量子宇宙学 · 物理学 2021-03-11 G. G. L. Nashed , Kazuharu Bamba

In this paper, we present the analytic solution for Anti-de Sitter-Nonlinear electrodynamics (AdS-NED) black hole in four dimensions. We study tunneling of vector particles from the AdS-NED black hole to find Hawking temperature as well as…

广义相对论与量子宇宙学 · 物理学 2018-10-23 Xiao-Mei Kuang , Bo Liu , Ali Övgün

We investigate the thermodynamics of a general class of exact 4-dimensional asymptotically Anti-de Sitter hairy black hole solutions and show that, for a fixed temperature, there are small and large hairy black holes similar to the…

高能物理 - 理论 · 物理学 2015-06-23 Andres Anabalon , Dumitru Astefanesei , David Choque

By implementing the gravitational decoupling method, we find the deformed AdS-Schwarzschild black hole solution when there is also an additional gravitational source, which obeys the weak energy condition. We also deliberately choose its…

广义相对论与量子宇宙学 · 物理学 2023-11-20 Mohammad Reza Khosravipoor , Mehrdad Farhoudi

Electrically charged solutions for gravity with a conformally coupled scalar field are found in four dimensions in the presence of a cosmological constant. If a quartic self-interaction term for the scalar field is considered, there is a…

高能物理 - 理论 · 物理学 2008-11-26 Cristian Martinez , Juan Pablo Staforelli , Ricardo Troncoso

New five-dimensional charged AdS black hole solutions are found in Einstein-Gauss-Bonnet gravity and the nonlinear electrodynamics. These solutions include regular black holes as well as extremal black holes. The first law of the black hole…

广义相对论与量子宇宙学 · 物理学 2019-10-02 Seungjoon Hyun , Cao H. Nam

Explicit example, where the Hawking temperature of a black hole horizon is compatible with the black hole's R\'enyi entropy thermodynamic description, is constructed. It is shown that for every static, spherically symmetric, vacuum black…

广义相对论与量子宇宙学 · 物理学 2025-04-24 Viktor G. Czinner , Hideo Iguchi

Using the fact that theories of gravity with asymptotically three-dimensional anti-de Sitter geometries have dual descriptions as two-dimensional conformal field theories (CFTs), we present the first study in field theory of the…

高能物理 - 理论 · 物理学 2020-04-15 Clifford V. Johnson , Victoria L. Martin , Andrew Svesko

We investigate the black hole solution to (2+1)-dimensional gravity coupled to topological matter, with a vanishing cosmological constant. We calculate the total energy, angular momentum and entropy of the black hole in this model and…

广义相对论与量子宇宙学 · 物理学 2010-04-28 S. Carlip , J. Gegenberg , R. B. Mann

Motivated by the recent progress on the holographic dual of the extended thermodynamics for black holes in anti-de-Sitter (AdS) space, we investiggate the hologrphic thermodynamics for the five-dimensional neutral Gauss-Bonnet AdS black…

高能物理 - 理论 · 物理学 2025-04-23 Si-Jiang Yang , Md Sabir Ali , Shao-Wen Wei , Yu-Xiao Liu

We re-examine the black hole solutions in classical theories of dilaton gravity in two dimensions. We consider an arbitrary dilaton potential such that there are black hole solutions asymptotic at infinity to the nearly $\mathrm{AdS}_2$…

高能物理 - 理论 · 物理学 2020-06-24 Edward Witten

This paper is about the extended thermodynamics of AdS black holes and its relation to CFT thermodynamics. The logarithmic term of the central charge is interpreted as black hole entropy. We have obtain a modified Friedmann equation from…

广义相对论与量子宇宙学 · 物理学 2023-06-30 M. Bousder , E. Salmani , H. Ez-Zahraouy

We study the thermodynamics of charged AdS black holes in deformed Jackiw-Teitelboim (dJT) gravity and their phase structures. In this regard, we will find some critical values for the temperature, entropy and charge of the corresponding…