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Neves and Saa introduced a two parameter spacetime that includes the Hayward, Bardeen, and Simpson-Visser geometries as particular cases. In this work, we employ the generalized off-shell Helmholtz free energy method to investigate the…

广义相对论与量子宇宙学 · 物理学 2026-05-22 A. A. M. Silva , M. H. Macedo , R. R. Landim

Regular black holes, which avoid the essential center singularities, can be constructed through various methods, including nonlinear electrodynamics and quantum corrections. Recently, it was shown that via an infinite tower of…

广义相对论与量子宇宙学 · 物理学 2024-12-10 Sheng-Wei Wang , Shan-Ping Wu , Shao-Wen Wei

We represent a new approach to exploring the thermodynamic topology of black holes, without introducing the nonphysical variable $\Theta\in[0,\pi]$ considered in previous studies, where black holes can exchange both energy and matter with…

广义相对论与量子宇宙学 · 物理学 2025-10-29 Cao H. Nam

In this work, employing the generalized off-shell free energy, we treat black hole solutions as defects in the thermodynamic parameter space. The results show that the positive and negative winding numbers corresponding to the defects…

广义相对论与量子宇宙学 · 物理学 2022-11-02 Shao-Wen Wei , Yu-Xiao Liu , Robert B. Mann

In this paper, we present topological black holes of third order Lovelock gravity in the presence of cosmological constant and nonlinear electromagnetic Born-Infeld field. Depending on the metric parameters, these solutions may be…

高能物理 - 理论 · 物理学 2008-11-26 M. H. Dehghani , N. Alinejadi , S. H. Hendi

In this paper, we investigate the thermodynamic topology of black holes within the framework of Tsallis statistics. By integrating Tsallis non-extensive statistics with topological thermodynamics, we analyze the local and global stability…

广义相对论与量子宇宙学 · 物理学 2025-07-17 Yahya Ladghami , Brahim Asfour , Amine Bouali , Ahmed Errahmani , Taoufik Ouali

It was shown that a standard ring of light can be imagined outside the event horizon for stationary rotating four-dimensional black holes with axial symmetry using the topological method\cite{001,002}. Based on this concept, in this paper,…

广义相对论与量子宇宙学 · 物理学 2023-12-27 Jafar Sadeghi , Mohammad Ali S. Afshar , Saeed Noori Gashti , Mohammad Reza Alipour

We have investigated the black hole thermodynamics and the phase transition for renormalized group improved asymptotically safe Schwarzschild black hole. This geometry takes into account the quantum gravitational correction in the running…

广义相对论与量子宇宙学 · 物理学 2022-12-21 Rituparna Mandal , Sunandan Gangopadhyay

We study the thermodynamics of a class of four-dimensional black hole solutions arising from the compactification of a higher-curvature gravity theory featuring an infinite tower of Lovelock-type invariants. For planar horizons, we identify…

广义相对论与量子宇宙学 · 物理学 2025-05-30 Adolfo Cisterna , Mokhtar Hassaine , Ulises Hernandez-Vera

In the generalized off-shell free energy landscape, black holes can be treated as thermodynamic topological defects. The local topological properties of the spacetime can be reflected by the winding numbers at the defects, while the global…

广义相对论与量子宇宙学 · 物理学 2023-02-08 Chaoxi Fang , Jie Jiang , Ming Zhang

We obtain topological black hole solutions in scalar-tensor gravity with nonminimal derivative coupling between scalar and tensor components of gravity and power-law Maxwell field minimally coupled to gravity. The obtained solutions can be…

高能物理 - 理论 · 物理学 2019-02-20 M. M. Stetsko

We examine counterparts of the Reissner-Nordstrom-anti-de Sitter black hole spacetimes in which the two-sphere has been replaced by a surface Sigma of constant negative or zero curvature. When horizons exist, the spacetimes are black holes…

广义相对论与量子宇宙学 · 物理学 2009-10-30 Dieter R. Brill , Jorma Louko , Peter Peldan

We discuss the corrected thermodynamics and naked singularity structure of the topological static spherically symmetric solution in $\mathcal{F}(R,\mathcal{G})$ - gravity coupled with Born-Infeld - like nonlinear electrodynamics. Solutions…

高能物理 - 理论 · 物理学 2024-03-05 Mert Mangut , Özay Gürtuğ , İzzet Sakallı

We investigate the thermodynamics, topology, and geometry of black holes in Lorentz-violating gravity. Modifications in the theory by perturbative parameter lead to coupled changes in horizon structure and thermodynamic behaviour, allowing…

广义相对论与量子宇宙学 · 物理学 2025-10-28 Ankit Anand , Aditya Singh , Anshul Mishra , Saeed Noori Gashti , Takol Tangphati , Phongpichit Channuie

Black holes are the fascinating objects in the universe. They represent extreme deformations in spacetime geometry. Here, we construct f(P) gravity and the first example of static-spherically symmetric black hole solution in f(P) gravity…

广义相对论与量子宇宙学 · 物理学 2025-02-13 Aniruddha Ghosh , Ujjal Debnath

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

In this paper, we construct a new class of analytic topological Lifshitz black holes with constant curvature horizon in the presence of power-law Maxwell field in four and higher dimensions. We find that in order to obtain these exact…

广义相对论与量子宇宙学 · 物理学 2015-08-13 M. Kord Zangeneh , A. Sheykhi , M. H. Dehghani

In some kinds of classical dilaton theory there exist black holes with (i) infinite horizon area $A$ or infinite $F$ (the coefficient at curvature in Lagrangian) and (ii) zero Hawking temperature $T_{H}$. For a generic static black hole,…

广义相对论与量子宇宙学 · 物理学 2009-11-07 O. B. Zaslavskii

The Hawking temperature for Schwarzschild black hole $T_H=1/8\pi M$ is singular in the limit of vanishing mass $M\to 0$. However, the Schwarzschild metric itself is regular in this limit, it is reduced to the Minkowski metric and there are…

高能物理 - 理论 · 物理学 2021-04-27 Irina Aref'eva , Igor Volovich

We present a class of spherically symmetric vacuum solutions to an asymptotically safe theory of gravity containing high-derivative terms. We find quantum corrected Schwarzschild-(anti)-de Sitter solutions with running gravitational…

高能物理 - 理论 · 物理学 2014-11-21 Yi-Fu Cai , Damien A. Easson
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