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相关论文: Nonsingular black hole chemistry

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Cutting out an infinite tube around $r=0$ formally removes the Schwarzschild singularity, but without a physical mechanism this procedure seems ad hoc and artificial. In this paper we provide justification for such a mechanism by means of…

广义相对论与量子宇宙学 · 物理学 2025-04-01 Jens Boos

We study the thermodynamic properties associated with the black hole event horizon and the cosmological horizon for black hole solutions in asymptotically de Sitter spacetimes. We examine thermodynamics of these horizons on the basis of the…

高能物理 - 理论 · 物理学 2007-05-23 Yuichi Sekiwa

In this paper, we take into account the black hole solutions of Einstein gravity with logarithmic and exponential forms of nonlinear electrodynamics. We consider $\Lambda$ as a dynamical pressure to study the analogy of the black holes with…

广义相对论与量子宇宙学 · 物理学 2015-11-25 S. H. Hendi , S. Panahiyan , B. Eslam Panah

The properties of static spherically symmetric black holes, which are both electrically and magnetically charged, and which are coupled to the dilaton in the presence of a cosmological constant, Lambda, are considered. It is shown that…

高能物理 - 理论 · 物理学 2010-04-06 S. J. Poletti , J. Twamley , D. L. Wiltshire

This study focuses on investigating a regular black hole within the framework of Verlinde's emergent gravity. In particular, we explore the main aspects of the modified Simpson--Visser solution. Our analysis reveals the presence of a unique…

广义相对论与量子宇宙学 · 物理学 2024-01-24 A. A. Araújo Filho

We analyze the structural and thermodynamic properties of $D$-dimensional ($D \geq 4$), asymptotically flat or Anti-de-Sitter, electrically charged black hole solutions, resulting from the minimal coupling of general nonlinear…

广义相对论与量子宇宙学 · 物理学 2019-04-24 H. Benbellout , J. Diaz-Alonso , D. Rubiera-Garcia

We consider Reissner-Nordstr\"{o}m black holes surrounded by quintessence where both a non-extremal event horizon and a cosmological horizon exist besides an inner horizon ($-1\leq \omega <-1/3$). We determine new extreme black hole…

广义相对论与量子宇宙学 · 物理学 2015-01-30 Mustapha Azreg-Aïnou

We have obtained a new exact regular black hole solution for the EGB gravity coupled with nonlinear electrodynamics in AdS space. The numerical analysis of horizon structure suggests two horizons exist: Cauchy and event. We also study the…

广义相对论与量子宇宙学 · 物理学 2023-12-08 Amit Kumar , Dharm Veer Singh , Yerlan Myrzakulov , Gulmira Yergaliyeva , Sudhaker Upadhyay

Einstein-Maxwell-dilaton theory with non-trivial dilaton potential is known to admit asymptotically flat and (Anti-)de Sitter charged black hole solutions. We investigate the conditions for the presence of horizons as function of the…

高能物理 - 理论 · 物理学 2022-08-26 Karim Benakli , Carlo Branchina , Gaëtan Lafforgue-Marmet

We investigate the extended phase space thermodynamics of nonsingular-AdS black holes minimally coupled to clouds of strings in which we consider the cosmological constant ($\Lambda$) as the pressure ($P$) of the black holes and its…

广义相对论与量子宇宙学 · 物理学 2022-04-14 Ashima Sood , Arun Kumar , J. K. Singh , Sushant G. Ghosh

A stationary and spherically symmetric black hole (For example, Reissner-Nordstrom black hole or Kerr-Newman black hole) has at most one singularity and two horizons. One horizon is the outer event horizon and the other is the inner Cauchy…

广义相对论与量子宇宙学 · 物理学 2018-05-23 Changjun Gao , Youjun Lu , Shuang Yu , You-Gen Shen

We study the $P-V$ criticality and phase transition in the extended phase space of charged Gauss-Bonnet black holes in anti-de Sitter space, where the cosmological constant appears as a dynamical pressure of the system and its conjugate…

广义相对论与量子宇宙学 · 物理学 2015-06-16 Rong-Gen Cai , Li-Ming Cao , Li Li , Run-Qiu Yang

In this work we obtain a static spherically symmetric charged black hole solution in the framework of minimal Horndeski gravity with additional Maxwell and Yang-Mills fields. The obtained solution is examined, in particular its asymptotics…

高能物理 - 理论 · 物理学 2023-09-27 M. M. Stetsko

We obtain the Kerr-anti-de-sitter (Kerr-AdS) and Kerr-de-sitter (Kerr-dS) black hole (BH) solutions to the Einstein field equation in the perfect fluid dark matter background using the Newman-Janis method and Mathematica package. We discuss…

广义相对论与量子宇宙学 · 物理学 2018-04-24 Zhaoyi Xu , Xian Hou , Jiancheng Wang

We study the thermodynamics of spherically symmetric, neutral and non-rotating black holes in conformal (Weyl) gravity. To this end, we apply different methods: (i) the evaluation of the specific heat; (ii) the study of the entropy…

高能物理 - 理论 · 物理学 2021-07-21 Daniele Lanteri , Shen-Song Wan , Alfredo Iorio , Paolo Castorina

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…

高能物理 - 理论 · 物理学 2020-02-12 M. Chabab , H. El Moumni , S. Iraoui , K. Masmar

In this study, we investigate the signatures of a non-commutative black hole solution. Initially, we calculate the thermodynamic properties of the system, including entropy, heat capacity, and Hawking radiation. For the latter quantity, we…

广义相对论与量子宇宙学 · 物理学 2024-08-29 A. A. Araújo Filho , J. R. Nascimento , A. Yu. Petrov , P. J. Porfírio , Ali Övgün

On the basis of horizon thermodynamics, we study the thermodynamic stability and $P-V$ criticality of topological black holes constructed in Ho\v{r}ava-Lifshitz (HL) gravity without the detailed-balance condition (with general $\epsilon$).…

高能物理 - 理论 · 物理学 2017-07-31 Meng-Sen Ma , Ren Zhao , Yan-Song Liu

An exact four-dimensional black hole solution of gravity with a minimally coupled self-interacting scalar field is reported. The event horizon is a surface of negative constant curvature enclosing the curvature singularity at the origin,…

高能物理 - 理论 · 物理学 2009-11-10 Cristian Martinez , Ricardo Troncoso , Jorge Zanelli

We construct exact black hole solutions to Einstein gravity with nonlinear electrodynamic field. In these solutions, there are in general four parameters. They are physical mass, electric charge, cosmological constant and the coupling…

广义相对论与量子宇宙学 · 物理学 2020-05-27 Shuang Yu , Changjun Gao