English
Related papers

Related papers: Gravity Effects on Hawking Radiation from Charged …

200 papers

This work analyzes the Einstein-Gauss-Bonnet gravity of charged black hole solutions through Newman-Janis approach. The Hawking temperature for corresponding black hole is also computed. The solution depends upon rotation parameter $a$,…

General Relativity and Quantum Cosmology · Physics 2022-08-19 Riasat Ali , Rimsha Babar , Muhammad Asgher

We construct, for the first time, charged rotating black string solutions in four-dimensional Einsteinian cubic gravity, which are asymptotically anti de Sitter. By assuming that the solutions are completely regular at the horizon and…

General Relativity and Quantum Cosmology · Physics 2022-03-24 Hamid R. Bakhtiarizadeh

We introduce a modification in the energy-momentum conservation violating Rastall's theory of gravity and obtain a Reissner-Nordstr\"om-type black hole solution in spacetime surrounded by a cloud of strings and charge fields. We examine the…

General Relativity and Quantum Cosmology · Physics 2024-04-11 Ronit Karmakar , Umananda Dev Goswami

A promising theory in modifying general relativity by violating the ordinary energy-momentum conservation law in curved spacetime is the Rastall theory of gravity. In this theory, geometry and matter fields are coupled to each other in a…

General Relativity and Quantum Cosmology · Physics 2018-03-12 Iarley P. Lobo , H. Moradpour , J. P. Morais Graça , I. G. Salako

In this short note we present the solution of Rastall gravity equations sourced by a Gaussian matter distribution. We find that the black hole metric shares all the common features of other regular, General Relativity BH solutions discussed…

General Relativity and Quantum Cosmology · Physics 2018-01-18 Euro Spallucci , Anais Smailagic

We obtain the solution of a static spherically symmetric black hole surrounded by a cloud of strings in Rastall gravity and study the influence of the parameter $a$ associated with strings on the event horizon and the Hawking temperature.…

High Energy Physics - Theory · Physics 2020-05-14 Xin-Chang Cai , Yan-Gang Miao

In this paper we study black string solutions under the consideration of rainbow gravity. We have analytically obtained the solution for four-dimensional black strings in terms of the functions $f(E/E_p)$ and $g(E/E_p)$ that sets the energy…

General Relativity and Quantum Cosmology · Physics 2023-01-11 R. Dárlla , F. A. Brito , J. Furtado

Hamilton-Jacobi ansatz is used to analyze boson charged particles tunneling in Rastall gravity Kerr- Newman black hole (BH) surrounded by perfect fluid matter through the horizon. The geometrical BH parameters are observed, how these are…

General Relativity and Quantum Cosmology · Physics 2022-06-06 Riasat Ali , Kazuharu Bamba , Syed Asif Ali Shah , Muhammad Junaid Saleem

This work builds upon the previous article [1] and explores the solution of the charged black string introduced in [2]. The black bounce regularization method, based on the Simpson-Visser solution, is employed by transforming the radial…

General Relativity and Quantum Cosmology · Physics 2023-06-06 A. Lima , G. Alencar , R. N. Costa Filho , R. R. Landim

We will analyze a black string in dRGT massive theory of gravity. Considering different approaches, we will study the critical behavior, phase transition and thermal stability for such a black string solution. We will also analyze the Van…

High Energy Physics - Theory · Physics 2021-04-06 Seyed Hossein Hendi , Hayedeh Zarei , Mir Faizal , Behnam Pourhassan , Zahra Armanfard

In this paper we study the scalar(tensor) and vector unparticle corrections for cosmic and black strings. Initially we have considered an static cosmic string ansatz from which we obtain the solution in terms of first and second kind Bessel…

High Energy Physics - Theory · Physics 2023-03-29 I. D. D. Carvalho , J. Furtado , R. R. Landim , G. Alencar

In this paper, we obtain two different static black string solutions by considering as sources axisymmetric dark matter distributions in 3+1 dimensions. These solutions tend asymptotically to the usual static and uncharged black string…

General Relativity and Quantum Cosmology · Physics 2023-05-17 Marcony S. Cunha , G. Alencar , Celio R. Muniz , Valdir B. Bezerra , Horácio S. Vieira

There has been much work on explaining Hawking radiation as a quantum tunneling process through horizons. Basically, this intuitive picture requires the calculation of the imaginary part of the action for outgoing particle. And two ways are…

High Energy Physics - Theory · Physics 2011-08-18 Hongbin Kim

We obtain a black hole solution in the Einstein-Gauss-Bonnet theory for the string cloud model in a five dimensional spacetime. We analyze the event horizons and naked singularities. Later, we compute the Hawking temperature…

High Energy Physics - Theory · Physics 2016-08-14 Estanislao Herscovich , Martín G. Richarte

We explicitly describe the last stages of black hole evaporation in the context of string theory : the combined study of Quantum Field Theory (QFT) and String Theory (ST) in curved backgrounds allows us to go further in the understanding of…

High Energy Physics - Theory · Physics 2007-05-23 Marina Ramon Medrano , Norma G. Sanchez

Solutions to low energy string theory describing black holes and black strings are reviewed. Many of these solutions can be obtained by applying simple solution generating transformations to the Schwarzschild metric. In a few cases, the…

High Energy Physics - Theory · Physics 2007-05-23 Gary T. Horowitz

This paper provides an extension for Hawking temperature of Reissner-Nordstr$\ddot{o}$m-de Sitter (RN-DS) black hole (BH) with global monopole as well as $5$D charged black hole. We consider the black holes metric and investigate the…

General Relativity and Quantum Cosmology · Physics 2022-08-17 Riasat Ali , Rimsha Babar , Muhammad Asgher , Syed Asif Ali Shah

We investigate the qualitative new features of charged dilatonic black holes which emerge when both the Yang-Mills and Gauss-Bonnet curvature corrections are included in the effective action. We consider perturbative effects by an expansion…

High Energy Physics - Theory · Physics 2009-10-22 S. Mignemi , N. R. Stewart

Hawking's calculation is unable to predict the final stage of the black hole evaporation. When effects of quantum gravity are taken into account, there is a minimal observable length. In this paper, we investigate fermions' tunnelling from…

High Energy Physics - Theory · Physics 2014-04-28 Deyou Chen , Zhonghua Li

The quantum string emission by Black Holes is computed in the framework of the `string analogue model' (or thermodynamical approach), which is well suited to combine QFT and string theory in curved backgrounds (particulary here, as black…

High Energy Physics - Theory · Physics 2017-08-23 M. Ramon Medrano , N. Sanchez
‹ Prev 1 2 3 10 Next ›