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相关论文: Taub-NUT-like Black Holes in Einstein-Bumblebee Gr…

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We construct a new class of asymptotically (a)dS black hole solutions of Einstein-Yang-Mills massive gravity in the presence of Born-Infeld nonlinear electrodynamics. The obtained solutions possess a Coulomb electric charge, massive term…

广义相对论与量子宇宙学 · 物理学 2022-08-09 Seyed Hossein Hendi , Mehrab Momennia

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

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

We derive various important thermodynamic relations of the inner and outer horizon in the background of Taub-NUT(Newman-Unti-Tamburino) black hole in four dimensional \emph{Lorentzian geometry}. We compare these properties with the…

广义相对论与量子宇宙学 · 物理学 2016-05-04 Parthapratim Pradhan

A general covariant Einstein-Gauss-Bonnet Gravity in Four-Dimensional (4D EGB) spacetime is shown to bypass Lovelock's theorem and is free from Ostrogradsky instability. Meanwhile, the bumblebee theory is a vector-tensor theory. It extends…

广义相对论与量子宇宙学 · 物理学 2024-09-11 Misba Afrin , Sushant G. Ghosh , Anzhong Wang

In this paper, we consider Einstein gravity coupled to a vector field, either minimally or non-minimally, together with a vector potential of the type $V=2\Lambda_0+\ft 12 m^2 A^2+\gamma_4 A^4$. For a simpler non-minimally coupled theory…

高能物理 - 理论 · 物理学 2016-10-12 Zhong-Ying Fan

As a vector-tensor theory including nonminimal coupling between the Ricci tensor and a vector field, the bumblebee gravity is a potential theory to test Lorentz symmetry violation. Recently, a new class of numerical spherical black holes in…

广义相对论与量子宇宙学 · 物理学 2023-07-14 Zhan-Feng Mai , Rui Xu , Dicong Liang , Lijing Shao

We study static spherically-symmetric solutions of the Einstein-Proca equations in the presence of a negative cosmological constant. We show that the theory admits solutions describing both black holes and also solitons in an asymptotically…

高能物理 - 理论 · 物理学 2015-06-18 Hai-Shan Liu , H. Lu , C. N. Pope

Regarding a special class of pure F(R) gravity in three dimensions, we obtain, analytically, Lifshitz-like black hole solutions. We check the geometrical properties of the solutions which behave such as charged BTZ black holes in special…

广义相对论与量子宇宙学 · 物理学 2020-05-27 S. H. Hendi , R. Ramezani-Arani , E. Rahimi

We study the thermodynamics associated to topological black hole solutions of AdS gravity coupled to nonlinear electrodynamics (Born-Infeld) in any dimension, using a background-independent regularization prescription for the Euclidean…

高能物理 - 理论 · 物理学 2008-11-26 Olivera Miskovic , Rodrigo Olea

We extend an earlier investigation of the thermodynamics of static black holes in an Einstein-Horndeski theory of gravity coupled to a scalar field, by including now an elec- tromagnetic field as well. By studying the two-parameter families…

高能物理 - 理论 · 物理学 2016-02-17 Xing-Hui Feng , Hai-Shan Liu , H. Lü , C. N. Pope

We explore black hole solutions and some of its physical properties in Einstein's theory in 4D, modified by a cubic gravity term and in the presence of non-linear electrodynamics. In the context of Effective Field Theories (EFT) and under…

广义相对论与量子宇宙学 · 物理学 2024-02-22 Gustavo Gutierrez-Cano , Gustavo Niz

In theories where the Lorentz symmetry of gravity is spontaneously broken, a non-minimally coupled bumblebee vector field acquires a nonzero vacuum expectation value, leading to modifications of standard General Relativity (GR). In this…

广义相对论与量子宇宙学 · 物理学 2026-03-11 Faizuddin Ahmed , Shubham Kala , Ahmad Al-Badawi

Motivated by recent activities in Lorentzian Taub-NUT space thermodynamics, we calculate conserved charges of these spacetimes. We find additional mass, nut, angular momentum, electric and magnetic charge densities distributed along Misner…

高能物理 - 理论 · 物理学 2022-06-29 Adel Awad , Somaya Eissa

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

It has been claimed that the cosmological constant in AdS black holes such as the BTZ black hole plays the role of the thermodynamic variable of a pressure in the thermodynamic first law and the Smarr relation from the scaling law of the…

广义相对论与量子宇宙学 · 物理学 2019-03-21 Yongwan Gim , Wontae Kim

Horndeski gravities are theories of gravity coupled to a scalar field, in which the action contains an additional non-minimal quadratic coupling of the scalar, through its first derivative, to the Einstein tensor or the analogous…

高能物理 - 理论 · 物理学 2016-01-27 Xing-Hui Feng , Hai-Shan Liu , H. Lü , C. N. Pope

We investigate Einstein--Gauss--Bonnet--Maxwell massive gravity in $4D$ AdS background and find an exact black hole solution. The horizon structure of the black holes studied. Treating the cosmological constant as pressure and Gauss-Bonnet…

广义相对论与量子宇宙学 · 物理学 2023-07-19 Prosenjit Paul , Sudhaker Upadhyay , Dharm Veer Singh

We present exact spherical black hole solutions in de Rham, Gabadadze and Tolley (dRGT) massive gravity for a generic choice of the parameters in the theory, and also discuss the thermodynamical and phase structure of the black hole in both…

广义相对论与量子宇宙学 · 物理学 2016-03-16 Sushant G. Ghosh , Lunchakorn Tannukij , Pitayuth Wongjun

Motivated by the violation of Lorentz invariancy in quantum gravity, we study black hole solutions in gravity's rainbow in context of Einstein gravity coupled with various models of nonlinear electrodynamics. We regard an energy dependent…

广义相对论与量子宇宙学 · 物理学 2018-10-22 S. H. Hendi , S. Panahiyan , B. Eslam Panah , M. Momennia