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We set up an Einstein-Gauss-Bonnet theory in four dimensions, based on the recent formulation of pure gravity with extra dimensions of vanishing metrical length [1]. In absence of torsion, the effective field equations depend only on the…

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

We explore the thermodynamic and phase transition properties of asymptotically AdS black holes within Einstein-Gauss-Bonnet gravity, focusing on Joule Thomson expansion. Thermodynamics is studied in the extended phase space, where the…

广义相对论与量子宇宙学 · 物理学 2024-10-01 Kartheek Hegde , A. Naveena Kumara , C. L. Ahmed Rizwan , Ajith K. M. , Md Sabir Ali , Shreyas Punacha

Instead of scalar tensor gravity models which is applicable for description of cosmic inflation with unknown dark sector of matter/energy, at presentense there are presented different alternative scalar tensor vector gravities where…

广义相对论与量子宇宙学 · 物理学 2023-01-24 Hossein Ghaffarnejad , Elham Ghasemi Kordkheilee

At first glance, thermodynamic properties of gravity with asymptotically AdS conditions and those with box boundary conditions, where the spatial section of the boundary is a sphere of finite radius, appear similar. Both exhibit a similar…

广义相对论与量子宇宙学 · 物理学 2024-05-13 Shoichiro Miyashita

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

Virtual transitions in a Casimir-like configuration are utilized to probe quantum aspects of four-dimensional Einstein-Gauss-Bonnet (4D EGB) gravity. This study employs a quantum optics-based approach, wherein an Unruh-DeWitt detector…

广义相对论与量子宇宙学 · 物理学 2025-06-04 Syed Masood

We present a $D$-dimensional Bardeen like Anti-de Sitter (AdS) black hole solution in Einstein-Gauss-Bonnet (EGB) gravity, \textit{viz}., Bardeen-EGB-AdS black holes. The Bardeen-EGB-AdS black hole has an additional parameter due to charge…

广义相对论与量子宇宙学 · 物理学 2019-03-29 Arun Kumar , Dharm Veer Singh , Sushant G. Ghosh

We construct charged AdS black hole solutions in four dimensional Einstein Gauss Bonnet gravity coupled to Euler Heisenberg nonlinear electrodynamics and investigate their physical properties. The modified field equations admit black hole…

广义相对论与量子宇宙学 · 物理学 2026-02-24 Bilel Hamil , Faisal Javed

We study the holographic s+p model in both four dimensional (4D) and five dimensional (5D) Einstein-Gauss-Bonnet (EGB) gravity. We first show a phase diagram with the Gauss-Bonnet parameter fixed to a small value $\alpha=10^{-7}$ to choose…

高能物理 - 理论 · 物理学 2023-06-26 Xing-Kun Zhang , Zhang-Yu Nie , Hui Zeng , Qiyuan Pan

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 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

For the higher-dimensional dS spacetime embedded with black holes with non-linear charges, there are two horizons with different radiation temperatures. By introducing the interplay between two horizons this system can be regarded as an…

高能物理 - 理论 · 物理学 2022-09-13 Yun-Zhi Du , Huai-Fan Li , Li-Chun Zhang

(2+1) dimensional gravity is equivalent to an exactly soluble non-Abelian Chern-Simons gauge field theory (E Witten 1988). Regarding this as the topological phase of quantum gravity in (2+1)d, we suggest a topological symmetry breaking by…

高能物理 - 理论 · 物理学 2007-05-23 Wei Chen

In this work we consider black hole solutions to Einstein theory coupled to a nonlinear power-law electromagnetic field with a fixed exponent value. We study the extended phase space thermodynamics in canonical and grand canonical ensembles…

广义相对论与量子宇宙学 · 物理学 2021-12-08 Ramon Becar , P. A. Gonzalez , Joel Saavedra , Yerko Vasquez , Bin Wang

In this thesis we study several problems in the context of AdS/CFT. The first is that of gravitational phase transitions between AdS and dS geometries in the Gauss-Bonnet theory of gravity. Such transitions are mediated by thermalons and do…

高能物理 - 理论 · 物理学 2017-12-08 J. Anibal Sierra-Garcia

We investigate the presence of a black hole black string phase transition in Einstein Gauss Bonnet (EGB) gravity in the large dimension limit. The merger point is the static spacetime connecting the black string phase with the black hole…

广义相对论与量子宇宙学 · 物理学 2021-08-25 Sreejith Nair , Vardarajan Suneeta

In this paper, we investigate the thermodynamics of D-dimensional charged Gauss-Bonnet black holes in anti-de Sitter spacetime. Varying the cosmological constant, Newton constant and Gauss-Bonnet coupling constant in the bulk, one can…

广义相对论与量子宇宙学 · 物理学 2023-05-31 Yang Qu , Jun Tao , Huan Yang

We study anti-de Sitter black holes in the Einstein-Gauss-Bonnet and the generic R^2 gravity theories, evaluate different thermodynamic quantities, and also examine the possibilities of Hawking-Page type thermal phase transitions in these…

高能物理 - 理论 · 物理学 2011-05-05 Y. M. Cho , Ishwaree P. Neupane

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

We study finite temperature properties of four dimensional QCD-like gauge theories in the gauge theory/gravity duality picture. The gravity dual contains two deformed 5d AdS metrics, with and without a black hole, and a dilaton. We study…

高能物理 - 唯象学 · 物理学 2010-10-27 K. Kajantie , T. Tahkokallio , Jung-Tay Yee