中文
相关论文

相关论文: Noncommutative inspired black holes in regularised…

200 篇论文

We construct uniform black-string solutions in Einstein-Gauss-Bonnet gravity for all dimensions $d$ between five and ten and discuss their basic properties. Closed form solutions are found by taking the Gauss-Bonnet term as a perturbation…

高能物理 - 理论 · 物理学 2014-11-20 Y. Brihaye , T. Delsate , E. Radu

Among various strong-curvature extensions to General Relativity, Einstein-Dilaton-Gauss-Bonnet gravity stands out as the only nontrivial theory containing quadratic curvature corrections while being free from the Ostrogradsky instability to…

广义相对论与量子宇宙学 · 物理学 2018-03-05 Andrea Maselli , Paolo Pani , Leonardo Gualtieri , Valeria Ferrari

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 study massive gravity in the presence of Born-Infeld nonlinear electrodynamics. First, we obtain metric function related to this gravity and investigate the geometry of the solutions and find that there is an essential…

高能物理 - 理论 · 物理学 2015-11-25 Seyed Hossein Hendi , Behzad Eslam Panah , Shahram Panahiyan

We investigated the regular multi-horizon black holes in the Einstein gravity, $F(R)$ gravity and the 5 dimensional Gauss-Bonnet gravity, all of them coupled with non-linear electrodynamics. We presented several explicit examples of the…

高能物理 - 理论 · 物理学 2017-11-22 Shin'ichi Nojiri , S. D. Odintsov

In this paper, we present an exact regular black hole solution in Einstein-Gauss-Bonnet coupled with nonlinear matter fields. It is a generalization of a regular Einstein-Gauss-Bonnet black hole in $5D$ $AdS$ spacetime. The causal structure…

广义相对论与量子宇宙学 · 物理学 2023-05-22 Yerlan Myrzakulov , Kairat Myrzakulov , Sudhaker Upadhyay , Dharm Veer Singh

We obtain rotating black hole solutions to the novel 3D Gauss-Bonnet theory of gravity recently proposed. These solutions generalize the BTZ metric and are not of constant curvature. They possess an ergoregion and outer horizon, but do not…

广义相对论与量子宇宙学 · 物理学 2021-02-03 Robie A. Hennigar , David Kubiznak , Robert B. Mann

As the only gravity theory with quadratic curvature terms and second-order field equations, Einstein-dilaton-Gauss-Bonnet gravity is a natural testbed to probe the high-curvature regime beyond General Relativity in a fully nonperturbative…

广义相对论与量子宇宙学 · 物理学 2023-03-15 Fabrizio Corelli , Marina De Amicis , Taishi Ikeda , Paolo Pani

Motivated by high interest in the close relation between string theory and black hole solutions, in this paper, we take into account the Einstein-Gauss-Bonnet Lagrangian in the context of massive gravity. We examine the possibility of black…

高能物理 - 理论 · 物理学 2016-02-23 S. H. Hendi , S. Panahiyan , B. Eslam Panah

We present a general procedure for constructing exact black hole (BH) solutions with the magnetic charge in the context of nonlinear electrodynamics (NED) theory as well as in the coherent state approach to noncommutative geometry (NCG). In…

综合物理 · 物理学 2019-11-06 S. Hamid Mehdipour

We investigate extremal charged black hole solutions in the four-dimensional string frame Gauss-Bonnet gravity with the Maxwell field and the dilaton. Without curvature corrections, the extremal electrically charged dilatonic black holes…

高能物理 - 理论 · 物理学 2009-04-17 Dmitri V. Gal'tsov , Evgeny A. Davydov

The phase and stability of black strings in the Einstein-Gauss-Bonnet (EGB) theory are investigated by using the large D effective theory approach. The spacetime metric and thermodynamics are derived up to the next-to-leading order (NLO) in…

高能物理 - 理论 · 物理学 2023-02-14 Ryotaku Suzuki , Shinya Tomizawa

We investigate vacuum static black hole solutions of Einstein-Gauss-Bonnet gravity with a negative cosmological constant in five dimensions. These are solutions with horizons of nontrivial topologies. The first one possesses a horizon with…

广义相对论与量子宇宙学 · 物理学 2021-10-04 Yuxuan Peng

We obtain a generalized Schwarzschild (GS-) and a generalized Reissner-Nordstrom (GRN-) black hole geometries in (3+1)-dimensions, in a noncommutative string theory. In particular, we consider an effective theory of gravity on a curved…

高能物理 - 理论 · 物理学 2008-11-26 Supriya Kar , Sumit Majumdar

Recently a non-trivial 4-dimensional theory of gravity that claims to circumvent Lovelock's theorem and avoid Ostrogradsky instability was formulated in [D. Glavan and C. Lin, Phys. Rev. Lett. 124, 081301 (2020)]. This theory, named "$4D$…

广义相对论与量子宇宙学 · 物理学 2020-05-14 Pedro G. S. Fernandes

In this paper, we used the non-commutative (NC) gauge theory of gravity to investigate the thermodynamic properties of a deformed Schwarzschild black hole (SBH). Our results present a new scenario of black hole evaporation. As a first step,…

广义相对论与量子宇宙学 · 物理学 2023-10-04 Abdellah Touati , Slimane Zaim

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 investigate the thermodynamics of asymptotically flat black holes in four-dimensional Einstein-Gauss-Bonnet (4D-EGB) gravity using R\'enyi entropy as a non-extensive generalization of the Bekenstein-Hawking entropy. The resulting…

高能物理 - 理论 · 物理学 2025-09-11 Amijit Bhattacharjee , Prabwal Phukon

We consider the $D\to 3$ limit of Gauss-Bonnet gravity. We find two distinct but similar versions of the theory and obtain black hole solutions for each. For one theory the solution is an interesting generalization of the BTZ black hole…

广义相对论与量子宇宙学 · 物理学 2020-08-05 Robie A. Hennigar , David Kubiznak , Robert B. Mann , Christopher Pollack

We propose an entropy current for dynamical black holes in a theory with arbitrary four derivative corrections to Einstein's gravity, linearized around a stationary black hole. The Einstein-Gauss-Bonnet theory is a special case of the class…

高能物理 - 理论 · 物理学 2020-06-23 Jyotirmoy Bhattacharya , Sayantani Bhattacharyya , Anirban Dinda , Nilay Kundu