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相关论文: New solutions of exotic charged black holes and th…

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We present a new class of black hole solutions in third-order Lovelock gravity whose horizons are Einstein space with two supplementary conditions on their Weyl tensors. These solutions are obtained with the advantage of higher curvature…

广义相对论与量子宇宙学 · 物理学 2015-06-22 N. Farhangkhah , M. H. Dehghani

We present the most general class of charged black hole solutions in third-order Lovelock gravity within even-dimensional spacetimes in the presence of an electromagnetic field. These solutions feature nonconstant-curvature horizons that…

广义相对论与量子宇宙学 · 物理学 2025-12-02 N. Farhangkhah , S. Hajkhalili

We present a new class of asymptotically flat charge static solutions in third order Lovelock gravity. These solutions present black hole solutions with two inner and outer event horizons, extreme black holes or naked singularities provided…

高能物理 - 理论 · 物理学 2009-11-11 M. H. Dehghani , M. Shamirzaie

The generalization of Birkhoff's theorem to higher dimensions in Lovelock gravity allows for black hole solutions with horizon geometries of non-constant curvature. We investigate thermodynamic aspects of these `exotic' black hole…

广义相对论与量子宇宙学 · 物理学 2023-07-12 Brayden R. Hull , Fil Simovic

A new class of analytic charged spherically symmetric black hole solutions, which behave asymptotically as flat or (A)dS spacetimes, is derived for specific classes of $f(R)$ gravity, i.e., $f(R)=R-2\alpha\sqrt{R}$ and…

广义相对论与量子宇宙学 · 物理学 2019-07-18 Gamal G. L. Nashed , Salvatore Capozziello

In mimetic gravity, we derive $D$-dimension charged black hole solutions having flat or cylindrical horizons with zero curvature boundary. The asymptotic behaviours of these black holes behave as (A)dS. We study both linear and nonlinear…

广义相对论与量子宇宙学 · 物理学 2019-02-06 G. G. L. Nashed , W. El Hanafy , Kazuharu Bamba

We present the black hole solutions possessing horizon with nonconstant-curvature and additional scalar restrictions on the base manifold in Lovelock gravity coupled to Born-Infeld (BI) nonlinear electrodynamics. The asymptotic and near…

广义相对论与量子宇宙学 · 物理学 2018-05-09 N. Farhangkhah

We construct spherically symmetric and static solutions in $F(R)$ gravity coupled with electromagnetic fields. The solutions include new types of black holes with electric and magnetic charges. We show that the higher-derivative terms make…

广义相对论与量子宇宙学 · 物理学 2023-03-22 G. G. L. Nashed , S. Nojiri

We study the thermodynamical properties of electrically charged black hole solutions of a nonlinear electrodynamics theory defined by a power p of the Maxwell invariant, which is coupled to Einstein gravity in four and higher spacetime…

高能物理 - 理论 · 物理学 2013-05-29 Hernan A. Gonzalez , Mokhtar Hassaine , Cristian Martinez

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 spherical symmetry, solutions of the semiclassical Einstein equations belong to one of two possible classes. Both classes contain solutions that -- depending on the dynamic behavior of the horizon -- describe evaporating physical black…

广义相对论与量子宇宙学 · 物理学 2022-03-10 Pravin K. Dahal , Sebastian Murk , Daniel R. Terno

We generalize the quasilocal definition of the stress energy tensor of Einstein gravity to the case of third order Lovelock gravity, by introducing the surface terms that make the action well-defined. We also introduce the boundary…

高能物理 - 理论 · 物理学 2008-11-26 M. H. Dehghani , R. B. Mann

Novel static black hole solutions with electric and magnetic charges are derived for the class of modified gravities: $f({\cal R})={\cal R}+2\beta\sqrt{{\cal R}}$, with or without a cosmological constant. The new black holes behave…

广义相对论与量子宇宙学 · 物理学 2020-02-14 E. Elizalde , G. G. L. Nashed , S. Nojiri , S. D. Odintsov

In this work, we investigate the $n$-dimensional charged static black hole solutions in the Einstein-\ae ther theory. By taking the metric parameter $k$ to be $1,0$, and $-1$, we obtain the spherical, planar, and hyperbolic spacetimes…

广义相对论与量子宇宙学 · 物理学 2019-01-11 Kai Lin , Fei-Hung Ho , Wei-Liang Qian

We study thermodynamics and critical behaviors of higher-dimensional Lovelock black holes with non-maximally symmetric horizons in the canonical ensemble of extended phase space. The effects from non-constancy of the horizon of the black…

广义相对论与量子宇宙学 · 物理学 2021-08-17 N. Farhangkhah , Z. Dayyani

The well-known $(2+1)$-dimensional Reissner-Nordstrom (BTZ) black hole can be generalized to three dimensional Einstein-nonlinear electromagnetic field, motivated from obtaining a finite value for the self-energy of a pointlike charge.…

高能物理 - 理论 · 物理学 2014-05-21 S. H. Hendi

By consideration of a Einstein-dilaton non-linear charged gravitating system, it has been shown that this theory is confronted with the problem of indeterminacy. It means that the number of independent differential equations is one less…

广义相对论与量子宇宙学 · 物理学 2023-01-23 Mohsen Dehghani

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

We present a class of charged black hole solutions in an ($n+2)$-dimensional massive gravity with a negative cosmological constant, and study thermodynamics and phase structure of the black hole solutions both in grand canonical ensemble…

高能物理 - 理论 · 物理学 2015-01-27 Rong-Gen Cai , Ya-Peng Hu , Qi-Yuan Pan , Yun-Long Zhang

In this paper, we compute the mass and the temperature of the uncharged black holes of third order Lovelock gravity and compute the entropy through the use of first law of thermodynamics. We perform a stability analysis by studying the…

广义相对论与量子宇宙学 · 物理学 2010-04-22 M. H. Dehghani , R. Pourhasan
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