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Related papers: Overcharging higher curvature black holes

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We study the generalization of the gadenken experiment of overcharging an extremal black hole proposed by Wald in the context of a multi black hole solution. In particular, we attempt to overcharge a system of two extremal black holes via…

General Relativity and Quantum Cosmology · Physics 2019-07-22 Akash K Mishra , Sudipta Sarkar

In this work, we use the weak cosmic censorship conjecture(WCC) to constrain black hole solutions in modified gravity theories. While Wald showed that extremal Kerr-Newman black holes in general relativity cannot be overcharged by test…

General Relativity and Quantum Cosmology · Physics 2026-01-21 Shauvik Biswas , Amruta Sadhu , Sudipta Sarkar

We perform extensive nonlinear numerical simulations of the spherical collapse of (charged) wavepackets onto a charged black hole within Einstein-Maxwell theory and in Einstein-Maxwell-scalar theory featuring nonminimal couplings and a…

General Relativity and Quantum Cosmology · Physics 2021-11-03 Fabrizio Corelli , Taishi Ikeda , Paolo Pani

The Weak Cosmic Censorship (WCC) conjecture can be used as a consistency criterion for any viable modification over general relativity (GR). We employ this idea to show that in contrast to the black holes in GR, it is indeed possible to…

General Relativity and Quantum Cosmology · Physics 2021-12-01 Rajes Ghosh , Akash K Mishra , Sudipta Sarkar

We study cosmic censorship in the Reissner-Nordstrom charged black hole by means of quantum gravity holding near the apparent horizons. We consider a gedanken experiment whether or not a black hole with the electric charge $Q$ less than the…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Ichiro Oda

The Eddington-inspired Born-Infeld (EiBI) gravity is a modification of the theory of general relativity inspired by the nonlinear Born-Infeld electrodynamics. The theory is described by a series of higher curvature terms added to the…

General Relativity and Quantum Cosmology · Physics 2019-01-14 Soumya Jana , Rajibul Shaikh , Sudipta Sarkar

If a black hole can accrete a body whose spin or charge would send the black hole parameters over the extremal limit, then a naked singularity would presumably form, in violation of the cosmic censorship conjecture. We review some previous…

General Relativity and Quantum Cosmology · Physics 2014-11-21 Ted Jacobson , Thomas P. Sotiriou

Recent researches of the novel $4D$ Einstein-Gauss-Bonnet (EGB) gravity have attracted great attention. In this paper, we investigate the validity of the weak cosmic censorship conjecture for a novel $4D$ charged EGB black hole with test…

General Relativity and Quantum Cosmology · Physics 2020-12-04 Si-Jiang Yang , Jun-Jie Wan , Jing Chen , Jie Yang , Yong-Qiang Wang

We test whether static charged dilaton black holes in 2+1 dimensions can be turned into naked singularities, by sending in test particles from infinity. We derive that overcharging is possible and generic for both extremal and nearly…

General Relativity and Quantum Cosmology · Physics 2020-12-01 Koray Düztaş , Mubasher Jamil

Deterministic nature of general relativity is ensured by the strong cosmic censorship conjecture, which asserts that spacetime cannot be extended beyond Cauchy horizon with square integrable connection. Although this conjecture holds true…

General Relativity and Quantum Cosmology · Physics 2020-03-23 Akash K Mishra , Sumanta Chakraborty

We reconsider over-charging the higher-dimensional nearly extremal charged black holes using the new version of gedanken experiment proposed recently by Sorce and Wald. As a result, we find that cosmic censorship conjecture associated with…

High Energy Physics - Theory · Physics 2018-09-20 Boxuan Ge , Yuyu Mo , Suting Zhao , Jieping Zheng

It has been shown that a nearly extremal black hole can be overcharged or overspun by a test particle if radiative and self-force effects are neglected, indicating that the cosmic censorship might fail. In contrast, the existing evidence in…

General Relativity and Quantum Cosmology · Physics 2013-02-26 Sijie Gao , Yuan Zhang

The ``cosmic censorship conjecture'' asserts that all singularities arising from gravitational collapse are hidden within black holes. We investigate this conjecture in a setup of interest for tests of General Relativity: black hole…

General Relativity and Quantum Cosmology · Physics 2015-12-09 Vitor Cardoso , Leonel Queimada

We investigate extremal charged black hole solutions in the four-dimensional string frame Gauss-Bonnet gravity with the Maxwell field and the dilaton. Without curvature corrections, the extremal electrically charged dilatonic black holes…

High Energy Physics - Theory · Physics 2009-04-17 Dmitri V. Gal'tsov , Evgeny A. Davydov

We show that, contrary to a widespread belief, one can overcharge a near extremal Reissner-Nordstrom black hole by throwing in a charged particle, as long as the backreaction effects may be considered negligible. Furthermore, we find that…

General Relativity and Quantum Cosmology · Physics 2016-08-25 Veronika E. Hubeny

Recently, several authors have studied the possibility of overspinning or overcharging an existing black hole to destroy its event horizon and make the central singularity naked. When all the effects are properly taken into account, any…

General Relativity and Quantum Cosmology · Physics 2013-06-24 Zilong Li , Cosimo Bambi

There is a claim that a static charged black hole (Reissner-Nordstr\"{o}m black hole) can be overcharged by absorbing a charged test particle. If it is true, it might give a counter example to the weak cosmic censorship conjecture, which…

General Relativity and Quantum Cosmology · Physics 2011-12-20 Soichiro Isoyama , Norichika Sago , Takahiro Tanaka

Based on the new version of the gedanken experiments proposed by Sorce and Wald, we examine the weak cosmic censorship conjecture (WCCC) under the spherically charged infalling matter collision process in the static charged Gauss-Bonnet…

General Relativity and Quantum Cosmology · Physics 2020-03-17 Jie Jiang

It is well known that ($2+1$) dimensional charged BTZ (Banados, Teitelboim, Zanelli) black hole can be overcharged by a charged scalar field and a charged particle in contrast to their analogues in ($3+1$) and higher dimensions. In this…

General Relativity and Quantum Cosmology · Physics 2022-07-06 Ayyesha K. Ahmed , Sanjar Shaymatov , Bobomurat Ahmedov

It is generically believed that higher-order curvature corrections to the Einstein-Hilbert action might cure the curvature singularities that plague general relativity. Here we consider Einstein-scalar-Gauss-Bonnet gravity, the only…

General Relativity and Quantum Cosmology · Physics 2017-12-27 Laura Sberna , Paolo Pani
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