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Recently, a new assumption was proposed in [Phys. Rev. D 100, no.10, 104022 (2019)]. This assumption considers that the energy of the particle changes the enthalpy of the black hole after throwing the particle into the black hole. Using the…

General Relativity and Quantum Cosmology · Physics 2021-05-13 Benrong Mu , Jing Liang , Xiaobo Guo

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…

General Relativity and Quantum Cosmology · Physics 2025-08-26 Waqar Ahmad , Abdul Rehman Kashif

In this paper, we investigate the strong cosmic censorship conjecture (SCC) for charged black holes in the de Sitter space by considering the weak gravity conjecture (WGC). Using analytical methods, we find that the SCC is preserved for…

High Energy Physics - Theory · Physics 2023-02-28 Jafar Sadeghi , Mohammad Reza Alipour , Saeed Noori Gashti

Penrose's weak cosmic censorship conjecture asserts that spacetime singularities produced by gravitational collapse are generically hidden behind event horizons, thus preventing them from causally influencing distant observers and…

General Relativity and Quantum Cosmology · Physics 2026-03-16 Giovanni Caridi , Fabrizio Corelli , Paolo Pani

The singularity problem has always been a focus of physicists' research. In order to solve this problem, Penrose proposed the cosmic censorship conjecture, but verifying this conjecture in different situations still faces many challenges.…

General Relativity and Quantum Cosmology · Physics 2024-10-07 Zhiqin Tu , Meirong Tang , Zhaoyi Xu

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

In this paper, we explore the intriguing interplay between fundamental theoretical physics concepts within the context of charged black holes. Specifically, we focus on the consistency of the weak gravity conjecture (WGC) and weak cosmic…

High Energy Physics - Theory · Physics 2024-12-13 Jafar Sadeghi , Saeed Noori Gashti , Mohammad Reza Alipour , Mohammad Ali S. Afshar

Weak cosmic censorship conjecture (WCCC) is a basic principle that guarantees the predictability of spacetime and should be valid in any classical theories. One critical scientific question is whether the WCCC can serve as a constraint to…

General Relativity and Quantum Cosmology · Physics 2021-10-05 Jie Jiang , Aofei Sang , Ming Zhang

It has been claimed that a Kerr-Newman black hole can generically be overspun by neutral test fields, and it has been argued that even when backreactions are taken into account, the black hole can still be destroyed. In this paper, we…

General Relativity and Quantum Cosmology · Physics 2025-12-29 Si-Jiang Yang , Zheng-Quan Cui , Shao-Wen Wei , Yu-Xiao Liu

A surprising connection between the weak gravity conjecture and cosmic censorship has recently been proposed. In particular, it was argued that a promising class of counterexamples to cosmic censorship in four-dimensional…

High Energy Physics - Theory · Physics 2019-07-17 Toby Crisford , Gary T. Horowitz , Jorge E. Santos

We apply Iyer-Wald's covariant phase space formalism to asymptotically de Sitter spacetimes and establish the thermodynamic first law, expressed in terms of the Abbott-Deser mass. Similar to Iyer-Wald's first law for asymptotically flat…

General Relativity and Quantum Cosmology · Physics 2025-08-19 Daisuke Yoshida , Kaho Yoshimura

The purpose of the current letter is to give some relevant clarification on the validity of the laws of thermodynamics and the stability of the horizon by scalar field scattering formalism. On the one side, the connection between the energy…

High Energy Physics - Theory · Physics 2022-07-26 H. El Moumni , J. Khalloufi , K. Masmar

We show explicitly, for different types of extremal black holes, that test fields satisfying the null energy condition at the event horizon cannot violate the weak cosmic censorship conjecture. This is done by checking, in each case, that…

General Relativity and Quantum Cosmology · Physics 2020-09-22 Jéssica Gonçalves , José Natário

In this thesis, we scrutinize the literature to trace the evolution of the concepts surrounding the weak cosmic censorship conjecture and the attempts to prove or disprove it. We discuss its development over the years, its conceptual…

General Relativity and Quantum Cosmology · Physics 2024-03-05 Ahmet Cem Erdogan

The strong cosmic censorship conjecture, introduced by Penrose five decades ago, asserts that, in self-consistent theories of gravity, Cauchy horizons inside dynamically formed black holes should be unstable to remnant perturbation fields…

General Relativity and Quantum Cosmology · Physics 2019-10-30 Shahar Hod

We present a systematic analysis of the Weak Cosmic Censorship Conjecture (WCCC) through Gedankenexperiments involving black hole perturbations induced by test particles. Our approach allows for the calculation of perturbations to any order…

General Relativity and Quantum Cosmology · Physics 2025-05-21 Kai-Peng Lu , Peng-Yu Wu , H. Lu

By neglecting the effects of self-force and radiation, we investigate the possibility of destroying the Kerr-MOG black hole through the point particle absorption process. Using the instability of event horizon and equation of particle…

General Relativity and Quantum Cosmology · Physics 2019-04-08 Bin Liang , Shao-Wen Wei , Yu-Xiao Liu

The Weak Cosmic Censorship Conjecture is a hypothesis regarding the properties of event horizons and singularities during the formation of black holes, stating that singularities are always encompassed by the event horizons(TEH) of black…

General Relativity and Quantum Cosmology · Physics 2024-02-27 Min Zhao , Meirong Tang , Zhaoyi Xu

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

The destruction of the black-hole event horizon is ruled out by both cosmic censorship and the generalized second law of thermodynamics. We test the consistency of this prediction in a (more) `dangerous' version of the gedanken experiment…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Shahar Hod