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Related papers: Magnetized Letelier black hole in AdS spacetime

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We study the shadow of five-dimensional black strings immersed in dark matter environment. We show the influence of the momentum characteristic parameter $\widetilde{P_{y}}$ of the extra compact dimension on the shadow radius, and we…

General Relativity and Quantum Cosmology · Physics 2024-12-31 Zening Yan

The Anti-de Sitter (AdS) black hole with lattice structure plays an essential role in the study of the optical conductivity in holographic approach. We investigate the instability of this sort of black holes which may lead to the…

High Energy Physics - Theory · Physics 2020-09-02 Yi Ling , Meng-He Wu

We study the motion of a ring string in the background of the Bardeen-AdS black hole surrounded by the quintessence dark energy. The effects of the magnetic monopole charge, the quintessence state parameter, and the quintessence…

General Relativity and Quantum Cosmology · Physics 2022-11-16 Jiayu Xie , Yaxuan Wang , Bing Tang

In this paper we study AdS-Schwarzschild black holes in four and five dimensions in dRGT minimally coupled to a cloud of strings and investigate the effects of this string cloud on the thermodynamics of the black holes. It is observed that…

High Energy Physics - Theory · Physics 2020-06-25 M. Ghanaatian , Mehdi Sadeghi , Hadi Ranjbari , Gh. Forozani

Following Gubser, Klebanov and Polyakov [hep-th/0204051], we study strings in AdS black hole backgrounds. With respect to the pure AdS case, rotating strings are replaced by orbiting strings. We interpret these orbiting strings as CFT…

High Energy Physics - Theory · Physics 2009-11-07 A. Armoni , J. L. F. Barbon , A. C. Petkou

This paper seeks to explore the holographic optical appearance of an AdS black hole with higher derivative corrections in the presence of a string cloud, drawing on the AdS/CFT correspondence and wave optics. We introduce a Gaussian wave…

High Energy Physics - Theory · Physics 2025-07-01 Abhishek Baruah , Bidyut Hazarika , Prabwal Phukon

We obtain an exact solution of spherically symmetric Letelier AdS black holes immersed in perfect fluid dark matter (PFDM). Considering the cosmological constant as the positive pressure of the system and volume as its conjugate variable,…

General Relativity and Quantum Cosmology · Physics 2024-03-26 Ashima Sood , Md Sabir Ali , J. K. Singh , Sushant G. Ghosh

We examine the thermodynamics and stability of 5-dimensional flat anti-de Sitter (AdS) black strings, locally asymptotically anti-de Sitter spacetimes whose spatial sections are AdS black holes with Ricci flat horizons. We find that there…

High Energy Physics - Theory · Physics 2008-12-30 Si Chen , Kristin Schleich , Donald M. Witt

In this paper, we investigate the effect of higher curvature corrections from Gauss-Bonnet gravity on the shadow of charged black holes in both $AdS$ and Minkowski spacetimes. The null geodesic equations are computed in $d=5$ spacetime…

General Relativity and Quantum Cosmology · Physics 2020-02-28 Anish Das , Ashis Saha , Sunandan Gangopadhyay

This study investigates a black hole surrounded by a cloud of strings and a cosmological dark fluid characterized by a modified Chaplygin-like equation of state (MCDF), $p=A\rho-B/\rho^{\beta}$. We analyze its geodesic structure, shadow,…

General Relativity and Quantum Cosmology · Physics 2025-05-20 Xiang-Qian Li , Yoonbai Kim , Bum-Hoon Lee , Hao-Peng Yan , Xiao-Jun Yue

In this study, charged AdS black holes with a string cloud are taken into consideration. We identify three distinct black hole solutions within a specific temperature range, which subsequently merge into a single black hole beyond this…

High Energy Physics - Theory · Physics 2024-03-18 Rishi Pokhrel , Tanay K. Dey

By deriving and solving the gravitational and electromagnetic field equations in $f(R,T)$ gravity coupled with nonlinear electrodynamics, we obtain a static spherically symmetric charged solution that incorporates higher-order correction…

General Relativity and Quantum Cosmology · Physics 2025-11-26 Tianyou Ren , Zhenglong Ban , Yaobin Hua , Rong-Jia Yang

We consider computational complexity of AdS_5 black holes. Our system contains a particle moving on the boundary of AdS. This corresponds to the insertion of a fundamental string in AdS_5 bulk spacetime. Our results give a constraint for…

High Energy Physics - Theory · Physics 2018-01-03 Koichi Nagasaki

In this paper, we examine the geodesic and thermodynamic properties of a Schwarzschild black hole with a cloud of strings (known as the Letelier black hole) immersed in a King dark matter (KDM) halo under an isotropic configuration. The…

General Relativity and Quantum Cosmology · Physics 2025-10-21 Faizuddin Ahmed , Edilberto O. Silva

We conduct a comprehensive investigation of a deformed AdS-Schwarzschild black hole with a global monopole surrounded by a quintessence field. Our analysis focuses on the geodesic motion of both null and timelike particles, enabling precise…

General Relativity and Quantum Cosmology · Physics 2025-05-20 Faizuddin Ahmed , Ahmad Al-Badawi , İzzet Sakallı , Dhruba Jyoti Gogoi

In this work we investigate gravitational lensing effect in strong field region around a dilaton black holes in an anti de Sitter (ADS) space. We also analyse the dependence of the radius of the photon sphere and deflection angle on dilaton…

General Relativity and Quantum Cosmology · Physics 2010-04-14 Tanwi Ghosh , Soumitra Sengupta

In this work, we study the optical properties of a class of magnetically charged rotating black hole spacetimes. The black holes in question are assumed to be immersed in the quintessence field, and subsequently, the resulting black hole…

General Relativity and Quantum Cosmology · Physics 2022-06-15 Chengxiang Sun , Yunqi Liu , Wei-Liang Qian , Ruihong Yue

An interpretation to the physics of stable geodesics of massive particles in black hole backgrounds has been recently proposed in the context of the AdS/CFT correspondence. It was argued that the existence of stable orbits indicates that…

General Relativity and Quantum Cosmology · Physics 2020-12-29 R. A. Konoplya , A. Zhidenko

We obtain two exact solutions of Einstein gravity coupled to nonlinear electrodynamics (NLED) in $(2+ 1)$-dimensional Anti-de Sitter (AdS) spacetime. The solutions are characterized by the mass $M$, angular momentum $J$, cosmological…

General Relativity and Quantum Cosmology · Physics 2020-03-11 Pedro Cañate , Daniela Magos , Nora Breton

The significant properties and phase transition of charged Anti-de Sitter (AdS) black holes have been extensively studied in a variety of modified theories of gravity in the presence of numerous matter fields. The goal of our current…

General Relativity and Quantum Cosmology · Physics 2024-01-10 Oleksii Sokoliuk , Sneha Pradhan , Alexander Baransky , P. K. Sahoo