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In this paper, the tunneling of scalar particles near the event horizons of Riemann space time, BTZ black hole and Schwarzschild-de Sitter black hole are investigated by applying Hamilton-Jacobi equation with Lorentz violation theory in…

General Relativity and Quantum Cosmology · Physics 2023-03-15 S. Christina , T. Ibungochouba Singh , I. Ablu Meitei

The persistence of a suitable notion of black hole thermodynamics in Lorentz breaking theories of gravity is not only a non-trivial consistency test for such theories, it is also an interesting investigation {\em per se}, as it might help…

General Relativity and Quantum Cosmology · Physics 2021-05-12 Mario Herrero-Valea , Stefano Liberati , Raquel Santos-Garcia

In this work, we construct a new kind of rainbow functions, which has generalized uncertainty principle parameter. Then, we investigate modified thermodynamic quantities and phase transition of rainbow Schwarzschild black hole by employing…

General Relativity and Quantum Cosmology · Physics 2020-07-01 Zhong-Wen Feng , De-Ling Tang , Dan-Dan Feng , Shu-Zheng Yang

This study explores the emission of massive charged spin-1 particles from the background of Bardeen regular spacetime by the semi-classical method used to study the Hawking radiation spectrum. We employed the Hamilton-Jacobi method and WKB…

General Relativity and Quantum Cosmology · Physics 2021-10-22 Areeba Merriam , M. Zain Sarwar

We study the emission of fermion and gauge boson degrees of freedom on the brane by a rotating higher-dimensional black hole. Using matching techniques, for the near-horizon and far-field regime solutions, we solve analytically the…

High Energy Physics - Theory · Physics 2008-11-26 S. Creek , O. Efthimiou , P. Kanti , K. Tamvakis

In this work, we investigated the thermodynamics of Schwarzschild-like bumblebee black hole using Iyer-Wald covariant phase space formalism. With a non zero vacuum expectation value, the bumblebee field is responsible for spontaneously…

General Relativity and Quantum Cosmology · Physics 2024-06-27 Yu-Sen An

Unparticle degrees of freedom, no matter how weakly coupled to the standard model particles, must affect the evolution of a black hole, which thermally decays into all available degrees of freedom. We develop a method for calculating the…

General Relativity and Quantum Cosmology · Physics 2009-11-06 De-Chang Dai , Dejan Stojkovic

We consider a renormalization group approach based on the idea that the primary contribution to the Schwarzschild-like black hole spacetime arises from the value of the gravitational coupling. The latter depends on the distance from the…

General Relativity and Quantum Cosmology · Physics 2025-01-30 R. A. Konoplya

Semiclassical black holes emit radiation called Hawking radiation. Such radiation, as seen by an asymptotic observer far outside the black hole, differs from original radiation near the horizon of the black hole by a redshift factor and the…

Mathematical Physics · Physics 2015-06-12 Tritos Ngampitipan , Petarpa Boonserm

This paper investigates the contribution of the nonsingular Yukawa-modified potential in the context of four-dimensional Einstein-Gauss-Bonnet (EGB) gravity modeling by a static and spherically symmetric black hole solution. These…

General Relativity and Quantum Cosmology · Physics 2024-02-09 Yassine Sekhmani , A. A. Araújo Filho , Ratbay Myrzakulov , Adam Z. Kaczmarek , Javlon Rayimbaev , Dominik Szczȩśniak

We present a theoretical investigation of black hole solutions in Kalb-Ramond gravity embedded with quintessence fields. Our study examines how combined effects of Lorentz violation through the Kalb-Ramond field parameter $\eta$ and exotic…

General Relativity and Quantum Cosmology · Physics 2025-08-29 Ahmad Al-Badawi , Faizuddin Ahmed , İzzet Sakallı

The Kazakov-Solodukhin black hole metric represents a spherically symmetric deformation of the Schwarzschild solution due to quantum-gravity corrections. Assuming the absence of nonspherical deformations of the metric, this problem was…

General Relativity and Quantum Cosmology · Physics 2025-05-12 S. V. Bolokhov , K. A. Bronnikov , R. A. Konoplya

The effects of dark matter spike in the vicinity of the supermassive black hole, located at the center of M87 (the Virgo A galaxy), are investigated within the framework of the so-called Bumblebee Gravity. Our primary aim is to determine…

General Relativity and Quantum Cosmology · Physics 2023-05-30 S. Capozziello , S. Zare , D. F. Mota , H. Hassanabadi

Heisenberg's uncertainty principle is a fundamental element in quantum mechanics. It sets a bound on our ability to predict the measurement outcomes of two incompatible observables simultaneously. In quantum information theory, the…

Quantum Physics · Physics 2020-10-28 Fariba Shahbazi , Soroush Haseli , Hazhir Dolatkhah , Shahriar Salimi

This work studies the impact of a new higher-order generalized uncertainty principle (GUP) on the stochastic gravitational wave background (SGWB) associated with a QCD-scale first-order phase transition. Assuming a strongly first-order…

General Relativity and Quantum Cosmology · Physics 2025-12-05 Zhong-Wen Feng , Long-Xiang Li , Shi-Yu Li , Qing-Quan Jiang , Xia Zhou

Since Stephen Hawking discovered that black holes emit thermal radiation, black holes have become the theoretical laboratories for testing our ideas on quantum gravity. This dissertation is devoted to the study of singularities, the…

General Relativity and Quantum Cosmology · Physics 2015-07-14 V. H. Satheeshkumar

We study the greybody factor and Hawking radiation for a scalar field coupling to Einstein's tensor in the background of Reissner-Nordstr\"om black hole in the low-energy approximation. We find that the presence of the coupling terms…

General Relativity and Quantum Cosmology · Physics 2015-03-17 Songbai Chen , Jiliang Jing

In this work, we explore a Schwarzschild-like black hole within the framework of metric--affine bumblebee gravity. First, we investigate the behavior of the Kretschmann scalar and singularities in this modified gravity approach. Next, we…

General Relativity and Quantum Cosmology · Physics 2024-07-09 N. Heidari , Caio F. B. Macedo , A. A. Araújo Filho , H. Hassanabadi

This paper investigates scalar perturbations and quasinormal modes (QNMs) associated with cylindrical black holes constructed within the frameworks of $f(\mathcal{R})$-gravity and Ricci-Inverse ($\mathcal{RI}$) gravity. Moreover, we study…

General Relativity and Quantum Cosmology · Physics 2025-01-03 Faizuddin Ahmed , İzzet Sakallı , Ahmad Al-Badawi , Abdelmalek Bouzenada

We start our analysis by deriving a master equation that describes the motion of a field with arbitrary spin $s$ on a 3-brane embedded in a non-rotating, uncharged (4+n)-dimensional black hole background. By numerical analysis, we derive…

High Energy Physics - Phenomenology · Physics 2009-11-10 Chris M. Harris , Panagiota Kanti
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