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相关论文: Electromagnetic field and cosmic censorship

200 篇论文

The weak cosmic censorship conjecture states that the black hole singularity is hidden inside the event horizon of the black hole, making it impossible for an external observer to measure. In this study, we investigate the weak cosmic…

广义相对论与量子宇宙学 · 物理学 2025-01-03 Meirong Tang , Lai Zhao , Zhaoyi Xu

We investigate the weak cosmic censorship conjecture (WCCC) violation through the absorption of a charged, rotating test particle by Kerr Newman spacetime in modified gravity (KN MOG). The result is sensitive to multiple factors, including…

广义相对论与量子宇宙学 · 物理学 2025-08-26 Waqar Ahmad , Abdul Rehman Kashif

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…

高能物理 - 理论 · 物理学 2020-01-03 Yan-Li He , Jie Jiang

We first obtain the $D$-dimensional asymptotically AdS charged black hole solution in general nonlinear electrodynamics (NLED). We then use the Hamilton-Jacobi method to describe the motion in curved spacetime of a scalar particle and a…

广义相对论与量子宇宙学 · 物理学 2019-05-09 Peng Wang , Houwen Wu , Haitang Yang

We argue that cosmic censorship is violated in the collision of two black holes in high spacetime dimension D when the initial total angular momentum is sufficiently large. The two black holes merge and form an unstable bar-like horizon,…

高能物理 - 理论 · 物理学 2019-05-06 Tomas Andrade , Roberto Emparan , David Licht , Raimon Luna

We investigate the stability of the inner horizon of a rotating BTZ black hole. We show that linear perturbations arising from smooth initial data are arbitrarily differentiable at the inner horizon if the black hole is sufficiently close…

高能物理 - 理论 · 物理学 2020-01-29 Oscar J. C. Dias , Harvey S. Reall , Jorge E. Santos

Recently Hertog, Horowitz, and Maeda have argued that cosmic censorship can be generically violated in string theory in anti-de Sitter spacetime by considering a collapsing bubble of a scalar field whose mass saturates the…

高能物理 - 理论 · 物理学 2009-11-10 Michael Gutperle , Per Kraus

We investigate the laws of thermodynamics and weak cosmic censorship conjecture in the normal and extended phase space of a Kerr-AdS black hole by analyzing the energy-momentum relation of the absorbed fermion dropping into the horizon. In…

广义相对论与量子宇宙学 · 物理学 2020-09-29 Xiao-Xiong Zeng , Hai-Qing Zhang

We test the validity of cosmic censorship in the rotating anti-de Sitter black hole. For this purpose, we investigate whether the extremal black hole can be overspun by the particle absorption. The particle absorption will change the mass…

广义相对论与量子宇宙学 · 物理学 2016-02-11 Bogeun Gwak , Bum-Hoon Lee

Viewing the negative cosmological constant as a dynamical quantity derived from the matter field, we study the weak cosmic censorship conjecture for the higher-dimensional asymptotically AdS Reissner-Nordstr\"om black hole. To this end,…

广义相对论与量子宇宙学 · 物理学 2020-09-17 Ming Zhang , Jie Jiang

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…

广义相对论与量子宇宙学 · 物理学 2018-12-26 Yuyu Mo , Yu Tian , Bin Wang , Hongbao Zhang , Zhen Zhong

According to the Cosmic Censorship Conjecture, all the singularities produced by the collapsing matter must be hidden behind an event horizon. In 4D general relativity, this implies that the final product of the collapse is a Kerr-Newman…

广义相对论与量子宇宙学 · 物理学 2010-01-04 Cosimo Bambi

We adopt the energy momentum relation of charged particles to study the thermodynamics laws and weak cosmic censorship conjecture of $D$-dimensional $f(R)$ AdS black holes in different phase spaces by considering charged particle…

高能物理 - 理论 · 物理学 2020-04-22 Ke-Jian He , Guo-Ping Li , Xin-Yun Hu

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…

广义相对论与量子宇宙学 · 物理学 2018-05-01 Ten-Yeh Yu , Wen-Yu Wen

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…

广义相对论与量子宇宙学 · 物理学 2016-08-25 Veronika E. Hubeny

The thermodynamics and weak cosmic censorship conjecture in extended phase spaces of charged anti-de Sitter black holes describing the massive gravity are investigated by the absorptions of the scalar particle and fermion. The cosmological…

高能物理 - 理论 · 物理学 2019-05-22 Deyou Chen

Motivated by the recent researches of black holes with NUT charge, we investigate the validity of the weak cosmic censorship conjecture for Kerr-Taub-NUT black hole with a test massive scalar field and a test particle, respectively. For the…

广义相对论与量子宇宙学 · 物理学 2020-04-01 Si-Jiang Yang , Jing Chen , Jun-Jie Wan , Shao-Wen Wei , Yu-Xiao Liu

The (zeroth-order) energy of a particle in the background of a black hole is given by Carter's integrals. However, exact calculations of a particle's {\it self-energy} (first-order corrections) are still beyond our present reach in many…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Shahar Hod

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…

广义相对论与量子宇宙学 · 物理学 2011-12-20 Soichiro Isoyama , Norichika Sago , Takahiro Tanaka

In this paper, we investigate the Weak Cosmic Censorship Conjecture in nearly extremal Kerr black hole by absorbing particles . In previous work, they ignore the process of black hole absorbing particles. They assume the whole particle can…

广义相对论与量子宇宙学 · 物理学 2020-09-17 Shun Jiang