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We study, in the framework of open quantum systems, the dynamics of a radially polarizable two-level atom in multi-polar coupling to fluctuating vacuum electromagnetic fields which is placed at a fixed radial distance outside a radiating…

广义相对论与量子宇宙学 · 物理学 2013-10-30 Jiawei Hu , Wenting Zhou , Hongwei Yu

Recently, it has been found that, with the R\'enyi statistics, the asymptotically flat Schwarzschild black hole can be in thermal equilibrium with infinite heat reservior at a fixed temperature when its event horizon radius is larger than…

高能物理 - 理论 · 物理学 2021-09-08 Chatchai Promsiri , Ekapong Hirunsirisawat , Watchara Liewrian

Regular black holes offer a compelling framework to explore the consequences of resolving the central singularity of standard black holes. Using the Simpson-Visser "black-bounce" geometry as an elegant, analytically tractable framework, we…

广义相对论与量子宇宙学 · 物理学 2025-12-17 Vinayak Joshi , Ashok B. Joshi

We analyze thermodynamic properties of the rotating regular black holes having mass ($M$), angular momentum ($a$), and a magnetic charge $(g)$, and encompass Kerr black hole ($g=0$). The mass $M$ has a minimum at the radius…

广义相对论与量子宇宙学 · 物理学 2022-04-21 Md Sabir Ali , Sushant G Ghosh

We study the phase structure of quantum improved Schwarzschild-(A)dS black holes in asymptotically safe gravity. Our results confirm some of the well-known properties of quantum black holes. For example, the quantum effect provides a…

高能物理 - 理论 · 物理学 2023-10-06 Chiang-Mei Chen , Yi Chen , Akihiro Ishibashi , Nobuyoshi Ohta

We suggest in this Letter that the Bekenstein-Hawking black hole entropy accounts for the degrees of freedom which are excited at low temperatures only and hence it leads to the negative specific heat. Taking into account the physical…

高能物理 - 理论 · 物理学 2009-10-19 Andrzej Z. Gorski , Pawel O. Mazur

We examine the thermodynamic behavior of a static neutral regular (non-singular) black hole enclosed in a finite isothermal cavity. The cavity enclosure helps us investigate black hole systems in a canonical or a grand canonical ensemble.…

高能物理 - 理论 · 物理学 2025-10-31 Athanasios G. Tzikas

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

Thermodynamic formalism for rotating black holes, characterized by noncommutative and quantum corrections, is constructed. From a fundamental thermodynamic relation, equations of state and thermodynamic response functions are explicitly…

广义相对论与量子宇宙学 · 物理学 2016-11-28 L. F. Escamilla-Herrera , E. Mena-Barboza , J. Torres-Arenas

We obtain an exact solution of $AdS$ black hole solution in Einstein-Gauss-Bonnet (EGB) gravity coupled with nonlinear electrodynamics. It interpolates with the $AdS$ regular black hole and $AdS$ EGB black hole in the absence of the…

广义相对论与量子宇宙学 · 物理学 2022-08-30 Dharm Veer Singh , Vinod Kumar Bhardwaj , Sudhaker Upadhyay

A model of nonlinear electrodynamics is proposed and investigated in general relativity. We consider the magnetic black hole and find a regular solution which gives corrections into the Reissner-Nordstr\"{o}m solution. At…

综合物理 · 物理学 2018-03-07 S. I. Kruglov

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

We study the thermodynamics of a $d$-dimensional Schwarzschild black hole in the canonical ensemble. This generalizes York's formalism to any number $d$ of dimensions. The canonical ensemble, characterized by a cavity of fixed radius $r$…

高能物理 - 理论 · 物理学 2021-04-20 Rui André , José P. S. Lemos

A criterion of thermal stability is derived for electrically charged quantum} black holes having large horizon area (compared to Planck area), as an inequality between the mass of the black hole and its microcanonical entropy. The…

广义相对论与量子宇宙学 · 物理学 2012-06-07 Abhishek Majhi , Parthasarathi Majumdar

We present the thermodynamics of a charged and rotating BTZ black holes here. In particular, we derive expressions for various macroscopic thermal quantities such as entropy, Hawking temperature, Helmholtz free energy, internal energy,…

广义相对论与量子宇宙学 · 物理学 2022-02-01 Sudhaker Upadhyay , Nadeem-ul-islam , Prince A. Ganai

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

In this article, we consider a conventional black hole under f(R) gravity. Due to the small fluctuations around the equilibrium state, we have summarized the expression of the modified thermodynamic entropy of this black hole. At the same…

广义相对论与量子宇宙学 · 物理学 2022-01-27 Wen-Xiang Chen , Yao-Guang Zheng , Jing-Yi Zhang

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…

广义相对论与量子宇宙学 · 物理学 2025-08-25 Rui-Bo Wang , Lei You , Shi-Jie Ma , Jian-Bo Deng , Xian-Ru Hu

In this work we suggest a simplified "quasi-classical" formalism of the Schwarzschild black hole thermodynamics. We define such small quantum system at Schwarzschild black hole horizon surface whose reduced Compton wavelength equals one…

综合物理 · 物理学 2020-09-22 Vladan Pankovic

We investigate the thermodynamics of the Schwarzschild-Tangherlini black hole in the context of the generalized uncertainty principle (GUP). The corrections to the Hawking temperature, entropy and the heat capacity are obtained via the…

高能物理 - 理论 · 物理学 2016-09-20 Z. W. Feng , H. L. Li , X. T. Zu , S. Z. Yang