English
Related papers

Related papers: Spin-dependent Regge-Wheeler Potential and QNMs in…

200 papers

We investigate the dynamics of test particles, perturbations, and greybody factors within the framework of a Bardeen-like AdS black hole (BH) with a phantom global monopole. This study explores the interactions between nonlinear…

High Energy Physics - Theory · Physics 2025-04-01 Faizuddin Ahmed , Ahmad Al-Badawi , İzzet Sakallı , Sara Kanzi

In this paper, we introduce a metric ansatz designed to describe spherically symmetric quantum-corrected black hole (BH) space-time within an AdS space background, incorporating both an ordinary and a phantom global monopole. Our study…

General Relativity and Quantum Cosmology · Physics 2025-03-20 B. Hamil , B. C. Lütfüoğlu , F. Ahmed , Z. Yousaf

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

We study the properties of a nonlinear magnetic-charged black hole in the presence of a phantom global monopole. By incorporating nonlinear electrodynamics (NLE) and exotic scalar fields, we derive an exact black hole solution and analyze…

General Relativity and Quantum Cosmology · Physics 2025-10-13 B. Hamil , B. C. Lütfüoğlu

We present a new exact solution to the gravitational field equations, where nonlinear electrodynamics (NLED) serves as the matter source in the presence of a quintessence field (QF). This solution describes a static, spherically symmetric…

General Relativity and Quantum Cosmology · Physics 2025-03-04 Ahmad Al-Badawi , Faizuddin Ahmed

This paper aims to explore the quasinormal modes (QNMs) and effective potential profiles of massless and rotating BTZ black holes within the frameworks of $f(\mathcal{R})$ and Ricci-Inverse ($\mathcal{RI}$) modified gravity theories, which,…

General Relativity and Quantum Cosmology · Physics 2025-04-11 Faizuddin Ahmed , Ahmad Al-Badawi , İzzet Sakallı , Abdelmalek Bouzenadad

We present a slowly rotating black hole with phantom global monopole by solving Einstein's field equation and find that presence of global monopole changes the structure of black hole. The metric coefficient $g_{t\phi}$ contains…

General Relativity and Quantum Cosmology · Physics 2015-06-12 Songbai Chen , Jiliang Jing

A set of effective equations for the gauge-invariant gravitational perturbations in the interior of a spherically symmetric, non-rotating black hole is derived within the framework of hybrid loop quantum cosmology. The quantum zero-mode of…

General Relativity and Quantum Cosmology · Physics 2026-01-01 Beatriz Elizaga Navascués , Alvaro Torres-Caballeros

A Regge--Wheeler analysis is performed for a novel black hole mimicker `the regular black hole with asymptotically Minkowski core', followed by an approximation of the permitted quasi-normal modes for propagating waveforms. A first-order…

General Relativity and Quantum Cosmology · Physics 2021-10-06 Alex Simpson

So-called "dirty" black holes are those surrounded by non-zero stress-energy, rather than vacuum. The presence of the non-zero stress-energy modifies key features of the black hole, such as the surface gravity, Regge-Wheeler equation,…

General Relativity and Quantum Cosmology · Physics 2013-08-19 Petarpa Boonserm , Tritos Ngampitipan , Matt Visser

It was recently pointed out that the fundamental mode of the Regge-Wheeler effective potential is unstable against an insignificant Gaussian metric perturbation, which, in turn, might substantially challenge the black hole spectroscopy.…

General Relativity and Quantum Cosmology · Physics 2026-02-06 Shui-Fa Shen , Guan-Ru Li , Ramin G. Daghigh , Jodin C. Morey , Michael D. Green , Qiyuan Pan , Cheng-Gang Shao , Wei-Liang Qian

We investigate the dynamics of spinning test particles in the vicinity of Einstein--geometric Proca (EGP) Anti-de Sitter (AdS) compact objects, which arise from metric-Palatini gravity extended by the antisymmetric part of the affine…

General Relativity and Quantum Cosmology · Physics 2026-03-31 Gulzoda Rakhimova , Beyhan Puliçe , Elham Ghorani , Farruh Atamurotov , Ahmadjon Abdujabbarov

Schwarzschild black holes with quantum corrections are studied under scalar field perturbations and electromagnetic field perturbations to analyze the effect of the correction term on the potential function and quasinormal mode (QNM). In…

General Relativity and Quantum Cosmology · Physics 2022-08-16 Yujia Xing , Yi Yang , Dong Liu , Zheng-Wen Long , Zhaoyi Xu

In this article, the behaviour of a charged and massive scalar field around a global monopole swallowed by a Reissner-Nordstr\"{o}m-Anti-de Sitter (RN-AdS) black hole is investigated by considering the Klein-Gordon equation in this…

General Relativity and Quantum Cosmology · Physics 2020-05-19 M. Haluk Seçuk , Özgür Delice

In this paper, we investigate the motion of spinning particles around a covariant quantum-corrected black hole without a Cauchy horizon within the framework of effective quantum gravity, and examine the influence of quantum gravitational…

General Relativity and Quantum Cosmology · Physics 2025-09-10 Jiawei Chen , Jinsong Yang

In this study, we investigate the geodesic structure, gravitational lensing/mirroring phenomena, and scalar perturbations of deformed AdS-Schwarzschild black holes with global monopoles, incorporating both ordinary and phantom…

General Relativity and Quantum Cosmology · Physics 2025-03-18 Faizuddin Ahmed , Ahmad Al-Badawi , İzzet Sakallı

We study the indivisibility of a quantum-corrected AdS black hole involving two kinds of global monopoles, regular or phantom ones to declare the effects from the quantum fluctuation, monopole factors and the negative cosmological constant…

High Energy Physics - Theory · Physics 2026-03-05 Tiantong Cheng , Hongbo Cheng

By regarding the Newton constant $G_{N}$ and cosmological constant $\Lambda$ as variables, we in this paper study the thermodynamics and phase transition of Reissner-Nordstr$\ddot{o}$m anti-de Sitter (RN-AdS) black hole with global monopole…

High Energy Physics - Theory · Physics 2024-12-04 He-Bin Zheng , Yun-Xian Chen , Jian Tang

In this paper the $f(R)$ global monopole is reexamined. We provide an exact solution for the modified field equations in the presence of a global monopole for regions outside its core, generalizing previous results. Additionally, we discuss…

General Relativity and Quantum Cosmology · Physics 2017-07-27 Thiago R. P. Caramês , Júlio C. Fabris , E. R. Bezerra de Mello , H. Belich

We investigate the geodesic motion of charged particles in the vicinity of regular black holes with a Minkowski core, embedded in a uniform magnetic field, and study the influences of magnetic field and regular black hole parameter on the…

General Relativity and Quantum Cosmology · Physics 2025-04-02 Mingyu Guo , Menghe Wu , Xiaomei Kuang , Hong Guo
‹ Prev 1 2 3 10 Next ›