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A new model of nonlinear electrodynamics with two parameters is proposed. We study the phenomenon of vacuum birefringence, the causality and unitarity in this model. There is no singularity of the electric field in the center of point-like…

广义相对论与量子宇宙学 · 物理学 2019-03-18 S. I. Kruglov

We investigate the thermodynamic properties, light deflection, and orbital dynamics of regular magnetically charged black holes (NRCBHs) arising from nonlinear electrodynamics (NED) coupled to general relativity. The metric function $f(r)$…

广义相对论与量子宇宙学 · 物理学 2025-07-08 Ekrem Aydiner , Erdem Sucu , İzzet Sakallı

In this work, we investigate the thermodynamics and motion of neutral test particles around a regular black hole immersed in a perfect fluid dark matter environment. We begin by examining the horizon structure and key thermodynamic…

广义相对论与量子宇宙学 · 物理学 2026-04-16 Faizuddin Ahmed , Sardor Murodov , Bekzod Rahmatov

Bardeen regular black hole is commonly considered as a solution of general relativity coupled to a nonlinear electrodynamics. In this paper, it is shown that the Bardeen solution may be interpreted as a quantum-corrected Schwarzschild black…

广义相对论与量子宇宙学 · 物理学 2018-12-06 R. V. Maluf , Juliano C. S. Neves

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

In this paper,we have studied phase transitions of higher dimensional charge black hole with spherical symmetry. we calculated the local energy and local temperature, and find that these state parameters satisfy the first law of…

广义相对论与量子宇宙学 · 物理学 2016-04-26 Xiongying Guo , Huaifan Li , Lichun Zhang , Ren Zhao

We obtain the charged rotating black hole in conformal gravity. The metric is asymptotic to the (anti-)de Sitter spacetime. The contribution to the metric from the charges has a slower falloff than that in the Kerr-Newman AdS black hole. We…

高能物理 - 理论 · 物理学 2015-06-12 Hai-Shan Liu , H. Lu

After considering the quantum corrections of Einstein-Maxwell theory, the effective theory will contain some higher-curvature terms and nonminimally coupled electromagnetic fields. In this paper, we study the first law of black holes in the…

广义相对论与量子宇宙学 · 物理学 2021-10-05 Jie Jiang , Aofei Sang , Ming Zhang

In this paper, we study thermodynamics and thermodynamic geometry of a black hole surrounded by the perfect fluid in Rastall theory. In particular, we calculate the physical quantity like mass, temperature and heat capacity of the system…

广义相对论与量子宇宙学 · 物理学 2019-10-16 Saheb Soroushfar , Reza Saffari , Sudhaker Upadhyay

In this paper, the overcharging problem and thermodynamics in the extended phase spaces of the five-dimensional spherically symmetric topological black holes are investigated by absorptions of scalar particles and fermions. The cosmological…

广义相对论与量子宇宙学 · 物理学 2020-07-15 Deyou Chen , Shan Zeng

The super-entropic black hole, which possesses a noncompact horizon topology and violates the reverse isoperimetric inequality, has been found to satisfy both the thermodynamic first law and the Bekenstein-Smarr mass formula. In this paper,…

广义相对论与量子宇宙学 · 物理学 2020-02-05 Di Wu , Puxun Wu , Hongwei Yu , Shuang-Qing Wu

We derive the mass term of the Bardeen metric in the presence of a noncommutative geometry induced minimal length. In this setup, the proposal of a stable black hole remnant as a candidate to store information is confirmed. We consider the…

综合物理 · 物理学 2016-08-29 S. Hamid Mehdipour , M. H. Ahmadi

The thermodynamic properties of a static and spherically symmetric hairy black hole solution arising in massive gravity with spontaneous Lorentz breaking are investigated. The analysis is carried out by enclosing the black hole in a…

广义相对论与量子宇宙学 · 物理学 2012-08-02 Fabio Capela , Germano Nardini

We perform the thermodynamic analysis of a black hole (BH) immersed in a dark matter halo (DMH). It is shown that the BH could not be in thermal equilibrium with the DMH in any regions outside the event horizon. This means that the…

广义相对论与量子宇宙学 · 物理学 2025-09-30 Yun Soo Myung

In the present paper we try to connect the Bardeen black hole with the concept of the recently proposed black hole chemistry. We study thermodynamic properties of the regular black hole with an anti-deSitter background. The negative…

广义相对论与量子宇宙学 · 物理学 2025-10-13 Athanasios G. Tzikas

We study the thermodynamic properties of a static electrically charged spherical thin shell in $d$ dimensions by imposing the first law of thermodynamics on the shell. The shell is at radius $R$, inside it the spacetime is Minkowski, and…

广义相对论与量子宇宙学 · 物理学 2022-11-28 Tiago V. Fernandes , José P. S. Lemos

By a suitable transformation, we present the $(n+1)$-dimensional charged rotating solutions of Gauss-Bonnet gravity with a complete set of allowed rotation parameters which are real in the whole spacetime. We show that these charged…

高能物理 - 理论 · 物理学 2008-11-26 M. H. Dehghani , G. H. Bordbar , M. Shamirzaie

We obtain exact Bardeen black holes to the regularized $4D$ Einstein--Gauss--Bonnet (EGB) gravity minimally coupled with the nonlinear electrodynamics (NED). In turn, we analyze the horizon structure to determine the effect of GB parameter…

广义相对论与量子宇宙学 · 物理学 2022-04-19 Arun Kumar , Rahul Kumar Walia , Sushant G. Ghosh

In this paper we present a regular black hole with a positive cosmological constant. The regular black hole considered is the well known Bardeen black hole and it is a solution to the Einstein equations coupled to non-linear electrodynamics…

广义相对论与量子宇宙学 · 物理学 2017-06-15 Sharmanthie Fernando

With an intent to explore the interplay between the Lorentz symmetry breaking (LSB) and the presence of dark matter (DM), we obtain a static and spherically symmetric black hole (BH) solution in the background of nonminimally coupled…

广义相对论与量子宇宙学 · 物理学 2026-01-01 Sohan Kumar Jha