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Using a modified expression for the electric potential in the context of T-duality (Gaete and Nicolini, Phys. Lett. B, 2022) we obtain an exact charged solution within 4D Einstein-Gauss-Bonnet (4D EGB) theory of gravity in the presence of a…

广义相对论与量子宇宙学 · 物理学 2023-02-10 Kimet Jusufi

Among the higher curvature gravities, the most extensively studied theory is the so-called Einstein-Gauss-Bonnet (EGB) gravity, whose Lagrangian contains Einstein term with the GB combination of quadratic curvature terms, and the GB term…

广义相对论与量子宇宙学 · 物理学 2020-12-30 Rahul Kumar , Shafqat Ul Islam , Sushant G. Ghosh

We propose a procedure for the $D\rightarrow 4$ limit of Einstein-Gauss-Bonnet (EGB) gravity that leads to a well defined action principle in four dimensions. Our construction is based on compactifying $D$-dimensional EGB gravity on a…

广义相对论与量子宇宙学 · 物理学 2020-09-03 H. Lu , Yi Pang

This paper studies Einstein-Gauss-Bonnet (EGB) black holes surrounded by three phenomenological distributions of dark matter halos. The main result is obtaining the analytical solutions for the metric and all thermodynamic quantities, such…

广义相对论与量子宇宙学 · 物理学 2023-09-15 I. D. D. Carvalho , G. Alencar , C. R. Muniz

We investigate the effects of the Einstein cubic gravity (ECG) on regular black hole solutions driven by nonlinear electrodynamics (NLE) sources. The ECG tends to form a naked singularity at the origin for a high ECG coupling constant.…

广义相对论与量子宇宙学 · 物理学 2023-05-30 L. A. Lessa , J. E. G. Silva

Since the recent derivation of a well-defined $D\rightarrow 4$ limit for regularized 4D Einstein Gauss-Bonnet (4DEGB) gravity, there has been considerable interest in testing it as an alternative to Einstein's general theory of relativity.…

广义相对论与量子宇宙学 · 物理学 2025-02-11 Michael Gammon , Robert Mann

We find an exact spherically symmetric regular Bardeen-like solutions by considering the coupling between Einstein-Gauss-Bonnet theory and nonlinear electrodynamics (NED) in five-dimensional spacetime. These solutions, with an additional…

广义相对论与量子宇宙学 · 物理学 2019-11-26 Dharm Veer Singh , Sushant G. Ghosh , Sunil D. Maharaj

By using the zero-point length effect, we construct a new class of charged black hole solutions in the framework of three dimensional Gauss-Bonnet (GB) gravity with Maxwell electrodynamics. The gravitational and electromagnetic potentials…

综合物理 · 物理学 2025-11-14 Kimet Jusufi , Mubasher Jamil , Ahmad Sheykhi

Recently, there has been significant interest regarding the regularization of a $D\rightarrow 4$ limit of Einstein-Gauss-Bonnet (EGB) gravity. This regularization involves re-scaling the Gauss-Bonnet (GB) coupling constant as…

广义相对论与量子宇宙学 · 物理学 2024-08-14 Zinnat Hassan , P. K. Sahoo

We investigate $4D$ Einstein-Gauss-bonnet gravity coupled to exponential electrodynamics in AdS background and found a static, spherically symmetric exact black hole solution. The horizon structure of black hole is discussed. Treating the…

广义相对论与量子宇宙学 · 物理学 2023-02-14 Prosenjit Paul

In this paper, we study thermodynamics of charged and uncharged 4-Dimension Einstein-Gauss-Bonnet (4D-EGB) black holes. The context of this study is the Visser's holographic thermodynamics with a fixed anti-de Sitter radius and a variable…

高能物理 - 理论 · 物理学 2024-01-30 Y. Ladghami , B. Asfour , A. Bouali , A. Errahmani , T. Ouali

Recently, there has been a surge of interest in the 4D Einstein-Gauss-Bonnet (4D EGB) gravity theory which bypasses the Lovelock theorem and avoids Ostrogradsky's instability. Such a novel theory has nontrivial dynamics and presents several…

高能物理 - 理论 · 物理学 2020-12-16 B. Eslam Panah , Kh. Jafarzade , S. H. Hendi

Spherically symmetric solution in 4D Einstein--Gauss--Bonnet gravity coupled to modified logarithmic nonlinear electrodynamics (ModLogNED) is found. This solution at infinity possesses the charged black hole Reissner--Nordstr\"{o}m…

综合物理 · 物理学 2023-01-30 S. I. Kruglov

We obtain an exact solution of $AdS$ black hole solution in Einstein-Gauss-Bonnet (EGB) gravity coupled with nonlinear electrodynamics. It interpolates with the $AdS$ regular black hole and $AdS$ EGB black hole in the absence of the…

广义相对论与量子宇宙学 · 物理学 2022-08-30 Dharm Veer Singh , Vinod Kumar Bhardwaj , Sudhaker Upadhyay

In this paper we construct an exact spherically symmetric black hole solution with a power Yang-Mills (YM) source in the context of $4D$ Einstein Gauss-Bonnet gravity ($4D$ EGB). We choose our source as $(F_{\mu\nu}^{(a)}F^{\mu\nu(a)})^q$,…

广义相对论与量子宇宙学 · 物理学 2022-12-28 Anindya Biswas

By looking at the Lovelock theorem one can infer that the gravity model given by \cite{GL} could not applicable for all type of 4D Einstein Gauss Bonnet (GB) curved spacetimes. Because in 4D space time the Gauss-Bonnet invariant is a total…

广义相对论与量子宇宙学 · 物理学 2022-02-11 Hossein Ghaffarnejad

In regularized 4-dimensional Einstein-Gauss-Bonnet (EGB) gravity derived from a Kaluza-Klein reduction of higher-dimensional EGB theory, we study the existence and stability of black hole (BH) solutions on a static and spherically symmetric…

广义相对论与量子宇宙学 · 物理学 2022-08-02 Shinji Tsujikawa

In this paper, we probe in 4D Einstein-Gauss-Bonnet black hole and its thermodynamics. We illustrate the three asymptotically 4D EGB spacetime as an asymptotically flat, de Sitter, and Anti-de Sitter. Also, we apply the tunneling of the…

广义相对论与量子宇宙学 · 物理学 2022-04-19 Sareh Eslamzadeh , Javad T. Firouzjaee , Kourosh Nozari

In this paper, we study charged black hole solutions in 4-dimensional Einstein-Gauss-Bonnet gravity combined with ModMax nonlinear electrodynamics. This is a conformally invariant extension of Maxwell theory that effectively describes…

广义相对论与量子宇宙学 · 物理学 2026-01-07 Bilel Hamil

A $(3+1)$-dimensional Einstein-Gauss-Bonnet theory of gravity has been recently formulated in [D. Glavan and C. Lin, Phys. Rev. Lett. {\bf 124}, 081301 (2020)] which is different from the pure Einstein theory, i.e., bypasses the Lovelock's…

广义相对论与量子宇宙学 · 物理学 2020-09-21 R. A. Konoplya , A. Zhidenko