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The EGB is an outcome of quadratic curvature corrections to the Einstein-Hilbert gravity action in the form of a Gauss-Bonnet (GB) term in $ D > 4$ dimensions, and EGB gravity is topologically invariant in $4D$. Several ways have been…

广义相对论与量子宇宙学 · 物理学 2023-02-07 Arun Kumar , Sushant G. Ghosh

Einstein-Gauss-Bonnet (EGB) gravity is an outcome of quadratic curvature corrections to the Einstein-Hilbert gravity action in the form of a Gauss-Bonnet (GB) term in $ D > 4$ dimensions and EGB gravity is topologically invariant in $4D$.…

广义相对论与量子宇宙学 · 物理学 2021-02-03 Sushant G. Ghosh , Dharm Veer Singh , Rahul Kumar , Sunil D. Maharaj

Recently, several methods have been proposed to regularize a $D \to 4$ limit of Einstein-Gauss-Bonnet (EGB), leading to nontrivial gravitational dynamics in $4D$. We present an exact nonsingular black hole solution in the $4D$ EGB gravity…

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

Low energy limits of a string theory suggest that the gravity action should include quadratic and higher-order curvature terms, in the form of dimensionally continued Gauss-Bonnet densities. Einstein-Gauss-Bonnet is a natural extension of…

广义相对论与量子宇宙学 · 物理学 2018-06-19 Sushant G. Ghosh

Recently it has been shown that the Einstein-Gauss-Bonnet (EGB) gravity, by rescaling the coupling constant as $\alpha/(D-4)$ and taking the limit $D \rightarrow 4$ at the level of the equations of motion, becomes nontrivially ghost-free in…

广义相对论与量子宇宙学 · 物理学 2020-10-13 Dharm Veer Singh , Sushant G. Ghosh , Sunil D. Maharaj

We investigate Einstein-Gauss-Bonnet (EGB) 4D massive gravity coupled to nonlinear electrodynamics (NED) in an Anti-de-Sitter (AdS) background and find an exact magnetically charged black hole solution. The metric function was analyzed for…

广义相对论与量子宇宙学 · 物理学 2024-10-02 Prosenjit Paul , S. I. Kruglov

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 recent times there is a surge of interest in constructing Einstein-Gauss-Bonnet (EGB) gravity, in the limit $D \to 4 $, of the $D$-dimensional EGB gravity. Interestingly, the static spherically symmetric solutions in the various proposed…

广义相对论与量子宇宙学 · 物理学 2020-10-20 Sushant G. Ghosh , Rahul Kumar

An alternative theory of gravity that has attracted much attention recently is the novel four-dimensional Einstein-Gauss-Bonnet (4D EGB) gravity. The theory is rescaled by the Gauss-Bonnet (GB) coupling constant $\alpha \rightarrow…

广义相对论与量子宇宙学 · 物理学 2022-03-25 Khadije Jafarzade , Mahdi Kord Zangeneh , Francisco S. N. Lobo

Glavan and Lin's proposal of an effective four-dimensional Einstein--Gauss--Bonnet (4D-EGB) gravity framework yields predictions that differ from general relativity in some regimes. A range of black hole studies have offered insights into…

广义相对论与量子宇宙学 · 物理学 2026-02-26 Syed Masood

We provide a new regular black hole solution (RBH) in Einstein Gauss-Bonnet (EGB) gravity with localized sources of matter in the energy--momentum tensor. We determine the necessary constraints in order for the solution to be regular.…

广义相对论与量子宇宙学 · 物理学 2023-08-03 Milko Estrada , Rodrigo Aros

We obtain an exact spherically symmetric and magnetically charged black hole solution in 4D Einstein-Gauss-Bonnet gravity coupled with nonlinear electrodynamics with the Lagrangian ${\cal L}_{NED} = -{\cal F}/(1+\sqrt{2\mid\beta{\cal…

广义相对论与量子宇宙学 · 物理学 2021-04-19 S. I. Kruglov

In this letter we present an exact spherically symmetric and magnetically charged black hole solution with exponential model of nonlinear electrodynamics [S. Kruglov, Annals Phys. 378, 59-70 (2017)] in the context of 4D…

广义相对论与量子宇宙学 · 物理学 2020-08-27 Kimet Jusufi

We obtain an exact spherically symmetric and magnetically charged black hole solution in 4D Einstein-Gauss-Bonnet gravity coupled with rational nonlinear electrodynamics. The thermodynamics of our model is studied. We calculate the Hawking…

综合物理 · 物理学 2021-06-02 S. I. Kruglov

We explore the impact of the Generalized Uncertainty Principle (GUP) on the thermodynamics of five-dimensional Einstein-Gauss-Bonnet (EGB) black holes. A modified mass-temperature relation is derived under the assumption of local…

广义相对论与量子宇宙学 · 物理学 2026-02-03 Sasmita Kumari Pradhan , Jamima Gee Varghese , C. Fairoos

Recently there has been a surge of interest in regularizing, a $ D \to 4 $ limit of, the Einstein-Gauss-Bonnet (EGB) gravity, and the resulting regularized $4D$ EGB gravity has nontrivial dynamics. The theory admits spherically symmetric…

广义相对论与量子宇宙学 · 物理学 2020-07-28 Rahul Kumar , Sushant G. Ghosh

Recently a $D$-dimensional regularization approach leading to the non-trivial $(3+1)$-dimensional Einstein-Gauss-Bonnet (EGB) effective description of gravity was formulated which was claimed to bypass the Lovelock's theorem and avoid…

广义相对论与量子宇宙学 · 物理学 2020-11-16 R. A. Konoplya , A. F. Zinhailo

We construct static and spherically symmetric generalizations of the Schwarzschild- and Reissner-Nordstr\"om-(Anti-)de Sitter (RN-(A)dS) black-hole solutions in four-dimensional Einsteinian cubic gravity (ECG). The solutions are determined…

高能物理 - 理论 · 物理学 2017-01-24 Pablo Bueno , Pablo A. Cano

In this paper, we analytically present an exact confining charged black hole solution to the scalar-tensor description of regularized 4-dimensional Einstein-Gauss-Bonnet gravity (4DEGBG) coupled to non-linear gauge theory containing…

广义相对论与量子宇宙学 · 物理学 2022-04-28 A. Övgün

We consider black hole in Einstein-Gauss-Bonnet(EGB) gravity in a dynamical setup and also the stationary black hole in recently discovered\cite{Glavan} $4$-dimensional novel Einstein-Gauss-Bonnet gravity. For dynamical EGB black hole in…

广义相对论与量子宇宙学 · 物理学 2021-10-27 Bhramar Chatterjee
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