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We examine the problem of overcharging extremal and near-extremal black hole solutions of Einstein-Gauss-Bonnet gravity in any dimension, generalizing the result in general relativity. We show that as in the case of general relativity, it…

General Relativity and Quantum Cosmology · Physics 2019-12-11 Rajes Ghosh , C. Fairoos , Sudipta Sarkar

Under spherical symmetry, we show that the weak cosmic censorship holds for the gravitational collapse of the Einstein-Maxwell-charged scalar field system. Namely, for this system, with generic initial data, the formed spacetime…

General Relativity and Quantum Cosmology · Physics 2024-02-27 Xinliang An , Hong Kiat Tan

The phenomenon of spontaneous scalarization of charged black holes has attracted a lot of attention. In this work, we study the dynamical process of the spontaneous scalarization of charged black hole in asymptotically anti-de Sitter…

General Relativity and Quantum Cosmology · Physics 2022-10-05 Wen-Kun Luo , Cheng-Yong Zhang , Peng Liu , Chao Niu , Bin Wang

In this work, we generalise the spontaneous scalarization phenomena in Einstein-Maxwell-Scalar models to a higher spin field. The result is an Einstein-Maxwell-Vector model wherein a vector field is non-minimally coupled to the Maxwell…

General Relativity and Quantum Cosmology · Physics 2021-02-10 João M. S. Oliveira , Alexandre M. Pombo

We consider the new version of the gedanken experiments proposed recently by Sorce and Wald to overcharge a static charged dilaton black hole. First of all, we derive the first-order and second-order perturbation inequalities in the…

High Energy Physics - Theory · Physics 2021-01-19 Jie Jiang , Banglin Deng , Zhaohui Chen

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

We study the spontaneous scalarization of charged black holes in Einstein's gravity minimally coupled to power--Maxwell electrodynamics which, in turn, is non--minimally coupled to a real scalar field. We point out the existence of a…

General Relativity and Quantum Cosmology · Physics 2024-06-03 M. Carrasco , N. M. Santos , E. Contreras

We construct exact, time-dependent, black hole solutions of Einstein-Maxwell-dilaton theory with arbitrary dilaton coupling, $a$. For $a=1$ this theory arises as the four-dimensional low-energy effective description of heterotic string…

High Energy Physics - Theory · Physics 2016-05-25 Pedro Aniceto , Paolo Pani , Jorge V. Rocha

It has recently been shown that the strong cosmic censorship conjecture can be violated by the massless neutral scalar field in the nearly extremal Reissner-Nordstrom-de Sitter black hole. However, the formation of such a black hole by…

General Relativity and Quantum Cosmology · Physics 2018-12-26 Yuyu Mo , Yu Tian , Bin Wang , Hongbao Zhang , Zhen Zhong

In this paper, we study the spontaneous scalarization of Reissner-Nordstr{\"o}% m (RN) black holes enclosed by a cavity in an Einstein-Maxwell-scalar (EMS) model with non-minimal couplings between the scalar and Maxwell fields. In this…

General Relativity and Quantum Cosmology · Physics 2021-12-01 Feiyu Yao

Recently, it is found that the strong cosmic censorship (SCC) is violated in RNdS black hole by a minimal coupled neutral massless scalar field at the linear perturbation level. For the Einstein-Maxwell-Scalar-Gauss-Bonnet theory which is…

General Relativity and Quantum Cosmology · Physics 2022-05-11 Aofei Sang , Jie Jiang

The weak cosmic censorship conjecture plays a foundational role in classical gravity by asserting that spacetime singularities are generically hidden behind event horizons. In this work, we explore its robustness in the…

General Relativity and Quantum Cosmology · Physics 2026-04-02 Yan-Qing Xu , Rui-Feng Zheng , Yu-Peng Zhang , Cheng-Yong Zhang

The cosmic censorship conjecture essentially states that naked singularities should not form from generic initial conditions. Since black hole parameters can change their values under Hawking evaporation, one has to ask whether it is…

General Relativity and Quantum Cosmology · Physics 2020-03-11 Hao Xu , Yen Chin Ong , Man-Hong Yung

We examine the weak cosmic censorship conjecture (WCCC) for the extremal charged black hole in possible generalizations of Einstein-Maxwell theory due to the higher order corrections, up to fourth-derivative terms. Our derivation is based…

General Relativity and Quantum Cosmology · Physics 2021-03-09 Baoyi Chen , Feng-Li Lin , Bo Ning , Yanbei Chen

We explore the cosmic censorship in the Einstein-Maxwell-dilaton theory following Wald's thought experiment to destroy a black hole by throwing in a test particle. We discover that at probe limit the extremal charged dilaton black hole…

General Relativity and Quantum Cosmology · Physics 2018-05-01 Ten-Yeh Yu , Wen-Yu Wen

The new version of the gedanken experiments proposed by Sorce and Wald are designed to test the validity of the weak cosmic censorship conjecture (WCCC) by overspinning or overcharging the Kerr-Newman black hole in Einstein-Maxwell gravity.…

General Relativity and Quantum Cosmology · Physics 2021-04-27 Zhen Li , Yunjiao Gao , Xiao-Kan Guo

The weak cosmic censorship conjecture asserts that spacetime singularities that arise in gravitational collapse are always hidden inside of black holes, invisible to distant observers. This conjecture, put forward by Penrose more than four…

General Relativity and Quantum Cosmology · Physics 2015-06-15 Shahar Hod

Recently, spontaneous scalarization of charged black holes has attracted a great deal of attention and motivated several studies of Einstein-Maxwell-scalar models. These studies have, however, only considered a massless and…

General Relativity and Quantum Cosmology · Physics 2020-09-09 Pedro G. S. Fernandes

We investigate extremal electrically charged black holes in Einstein-Maxwell-dilaton theory with a cosmological constant inspired by string theory. These solutions are not static, and a timelike singularity eventually appears which is not…

High Energy Physics - Theory · Physics 2010-01-06 James H. Horne , Gary T. Horowitz

Recently, Sorce and Wald have suggested a new version of the gedanken experiments to overspin or overcharge the Kerr-Newman black holes in Einstein-Maxwell gravity. Following their setup, in this paper, we investigate the weak cosmic…

High Energy Physics - Theory · Physics 2020-01-03 Yan-Li He , Jie Jiang
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