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相关论文: GUP corrected black holes with cloud of string

200 篇论文

We compute the Quasi-Normal Mode (QNM) frequencies for scalar perturbations for modified Schwarzschild black holes in Loop Quantum Gravity. We study the singularity-free polymerized metric characterised by two parameters encoding loop…

广义相对论与量子宇宙学 · 物理学 2025-01-08 Etera R. Livine , Clara Montagnon , Naritaka Oshita , Hugo Roussille

We investigate gravitational quasinormal modes of the Dymnikova black hole, a regular spacetime in which the central singularity is replaced by a de Sitter core. This geometry, originally proposed as a phenomenological model, also arises…

广义相对论与量子宇宙学 · 物理学 2026-01-27 Bekir Can Lütfüoğlu , Erdinç Ulaş Saka , Abubakir Shermatov , Inomjon Ibragimov , Javlon Rayimbaev , Sokhibjan Muminov

We study the Schwarzschild and Reissner-Nordstr\"{o}m black hole thermodynamics using the simplest form of the generalized uncertainty principle (GUP) proposed in the literature. The expressions for the mass-temperature relation, heat…

广义相对论与量子宇宙学 · 物理学 2015-06-16 Sunandan Gangopadhyay , Abhijit Dutta , Anirban Saha

We present a comprehensive study of the quasinormal modes of a new class of nonlocal static and spherically symmetric black hole (BH) solutions within the framework of the revised Deser-Woodard theory of gravity. These solutions are…

广义相对论与量子宇宙学 · 物理学 2025-08-28 Rocco D'Agostino , Vittorio De Falco

Various approaches to quantum gravity, such as string theory, predict a minimal measurable length and a modification of the Heisenberg Uncertainty Principle near the Plank scale, known as the Generalized Uncertainty Principle (GUP). Here we…

高能物理 - 理论 · 物理学 2014-11-04 Fatemeh Ahmadi , Jafar Khodagholizadeh

Recently, there has been much attention devoted to resolving the quantum corrections to the Bekenstein--Hawking (black hole) entropy. In particular, many researchers have expressed a vested interest in fixing the coefficient of the…

高能物理 - 理论 · 物理学 2009-11-10 A. J. M. Medved , Elias C. Vagenas

Quasinormal modes for bosonic (scalar, electromagnetic, and axial gravitational) and fermionic field perturbations, radiated from black holes that carry quantum gravitational corrections at third order in the curvature to the Schwarzschild…

广义相对论与量子宇宙学 · 物理学 2026-01-09 R. Casadio , C. Noberto Souza , R. da Rocha

A Kantowski-Sachs model with a modified quantization prescription is considered. Such quantization rules, inspired by the so-called Generalized Uncertainty Principle (GUP), correspond to a modified commutation relation between…

广义相对论与量子宇宙学 · 物理学 2020-02-06 Pasquale Bosso , Octavio Obregón

Linearized perturbations of a Schwarzschild black hole are described, for each angular momentum $\ell$, by the well-studied discrete quasinormal modes (QNMs), and in addition a continuum. The latter is characterized by a cut strength…

广义相对论与量子宇宙学 · 物理学 2007-05-23 P. T. Leung , Alec Maassen_van_den_Brink , K. W. Mak , K. Young

In this paper, we have discussed the effects of quantum fluctuations spewed by a black hole on its deflection angle. The Gauss-Bonnet theorem (GBT) is exploited with quantum corrections through the Extended Uncertainty Principle (EUP) and…

广义相对论与量子宇宙学 · 物理学 2019-12-16 Yashmitha Kumaran , Ali Övgün

The effect of Lorentz symmetry breaking (LSB) on the Hawking radiation of Schwarzschild-like black hole found in the bumblebee gravity model (SBHBGM) is studied in the framework of quantum gravity. To this end, we consider Hawking radiation…

高能物理 - 理论 · 物理学 2022-06-22 Sara Kanzi , İzzet Sakallı

A quantum-corrected black hole model arising from gravitational collapse in the framework of Asymptotically Safe Gravity was recently proposed in [A. Bonanno, D. Malafarina, A. Panassiti, Phys. Rev. Lett. 132, 031401 (2024)]. Quantum…

广义相对论与量子宇宙学 · 物理学 2026-01-21 B. C. Lütfüoğlu

In this paper, considering the influence of the principle of generalized uncertainty (GUP), the phase transition of a Schwarzschild black hole with global monopole is discussed. First, we use the generalized Dirac equation to obtain…

高能物理 - 理论 · 物理学 2020-01-31 Yang Chen , Hui-Ling Li

We derive novel black hole solutions in a modified gravity theory, namely the Hu-Sawicki model of $f(R)$ gravity. After obtaining the black hole solution, we study the horizon radius of the black hole from the metric and then analyse the…

广义相对论与量子宇宙学 · 物理学 2024-10-04 Ronit Karmakar , Umananda Dev Goswami

String theory is a promising candidate for a fundamental quantum theory of all interactions including Einstein gravity. Some solutions in string theory can be interpreted as black holes. Using the semi-analytic method and WKB method,the…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Xin-zhou Li , Jian-gang Hao , Dao-jun Liu

Variations at the event horizon structure of a black hole will emit the signals of the gravitational wave echoes associated with the ringdown of the binary black hole merger. In this work, combining mass model of M87 and Einasto profile for…

广义相对论与量子宇宙学 · 物理学 2024-09-04 Dong Liu , Yi Yang , Zheng-Wen Long

A renormalized group improved Schwarzschild black hole spacetime contains two quantum correction parameters. One parameter $\gamma$ represents the identification of cutoff of the distance scale, and another parameter $\Omega$ stems from…

广义相对论与量子宇宙学 · 物理学 2024-06-28 Junjie Lu , Xin Wu

Correspondences between apparently distant concepts are ubiquitous in theoretical physics. In the context of black holes (BHs), quasinormal modes (QNMs) were shown to be linked to both shadows, in the so-called eikonal limit, and graybody…

广义相对论与量子宇宙学 · 物理学 2025-07-04 Davide Pedrotti , Marco Calzà

An Extended Uncertainty Principle inspired Schwarzschild metric that allows for large scale modifications to gravitation is presented. At a new fundamental length scale $\Ls$, the usual black hole characteristics (horizon radius, ISCO, and…

广义相对论与量子宇宙学 · 物理学 2018-12-24 J. R. Mureika

We obtain the black hole solution for the Ay\'on - Beato - Garc\'ia (ABG) type black hole surrounded by a cloud of strings in Rastall gravity and calculate the scalar quasinormal modes of it for a massless scalar field. To have a better…

广义相对论与量子宇宙学 · 物理学 2022-10-03 Dhruba Jyoti Gogoi , Ronit Karmakar , Umananda Dev Goswami