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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…

广义相对论与量子宇宙学 · 物理学 2026-04-02 Yan-Qing Xu , Rui-Feng Zheng , Yu-Peng Zhang , Cheng-Yong Zhang

We study the spherical gravitational collapse of a compact object under the approximation that the radial pressure is identically zero, and the tangential pressure is related to the density by a linear equation of state. It turns out that…

广义相对论与量子宇宙学 · 物理学 2009-10-30 T. P. Singh , Louis Witten

Examining the relativistic collapse of a spherical spacetime where gravity is coupled with a scalar field, this review provides a thorough analysis of some of the most relevant studies from both analytical and numerical perspectives. The…

广义相对论与量子宇宙学 · 物理学 2024-05-09 Roberto Giambò

Cosmic censorship protects the outside world from black hole singularities and paves the way for assigning entropy to gravity at the event horizons. We point out a tension between cosmic censorship and the quantum backreacted geometry of…

广义相对论与量子宇宙学 · 物理学 2024-03-21 José Navarro-Salas

This paper investigates the global properties of a class of spherically symmetric spacetimes. The class contains the maximal development of asymptotically flat spherically symmetric initial data for a wide variety of coupled Einstein-matter…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Mihalis Dafermos

We investigate the general relativistic collapse of spherically symmetric, massless spin-1/2 fields at the threshold of black hole formation. A spherically symmetric system is constructed from two spin-1/2 fields by forming a spin singlet…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Jason F. Ventrella , Matthew W. Choptuik

This paper is devoted to study the gravitational charged perfect fluid collapse in the Friedmann universe models with cosmological constant. For this purpose, we assume that the electromagnetic field is so weak that it does not introduce…

广义相对论与量子宇宙学 · 物理学 2015-05-18 M. Sharif , G. Abbas

This paper studies near-critical evolution of the spherically symmetric scalar field configurations close to the continuously self-similar solution. Using analytic perturbative methods, it is shown that a generic growing perturbation…

广义相对论与量子宇宙学 · 物理学 2009-10-31 Andrei V. Frolov

We prove some theorems characterizing the global properties of static, spherically symmetric configurations of a self-gravitating real scalar field in general relativity (GR) in various dimensions, with an arbitrary potential $V$, not…

广义相对论与量子宇宙学 · 物理学 2010-11-19 K. A. Bronnikov , G. N. Shikin

Transforming Penrose's intuitive picture of a strong cosmic censorship principle, that generically forbids the appearance of locally naked space-time singularities, into a formal mathematical proof, remains at present, one of the most…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Wenceslao Santiago-Germán

The global properties of spatially homogeneous cosmological models with collisionless matter are studied. It is shown that as long as the mean curvature of the hypersurfaces of homogeneity remains finite no singularity can occur in finite…

广义相对论与量子宇宙学 · 物理学 2009-10-22 Alan D. Rendall

We present a new shear free model for the gravitational collapse of a spherically symmetric charged body. We propose a dissipative contraction with radiation emitted outwards. The Einstein field equations, using the junction conditions and…

广义相对论与量子宇宙学 · 物理学 2013-01-10 G. Pinheiro , R. Chan

We summarize results from a study of spherically symmetric collapse of a {\it charged} (complex) massless scalar-field \cite{Hod}. We present an analytic argument which conjecture the generalization of the mass-scaling relation and echoing…

广义相对论与量子宇宙学 · 物理学 2010-11-19 Shahar Hod , Tsvi Piran

We investigate the occurrence of naked singularities in the spherically symmetric, plane symmetric and cylindrically symmetric collapse of charged null fluid in an anti-de Sitter background. The naked singularities are found to be strong in…

广义相对论与量子宇宙学 · 物理学 2008-11-26 S. G. Ghosh

It is proved that dynamically formed Reissner-Nordstr\"om-de Sitter (RNdS) black holes, which have recently been claimed to provide counter-examples to the Penrose strong cosmic censorship conjecture, are characterized by unstable…

广义相对论与量子宇宙学 · 物理学 2019-05-01 Shahar Hod

The strong cosmic censorship has recently been put into question for the charged black holes in de Sitter space. We have performed the full non-linear evolution of the massless charged scalar field minimally coupled to the Einstein-Maxwell…

高能物理 - 理论 · 物理学 2019-10-04 Hongbao Zhang , Zhen Zhong

There are a number of publications on relativistic objects dealing either with black holes or naked singularities in the center. Here we show that there exist static spherically symmetric solutions of Einstein equations with a strongly…

广义相对论与量子宇宙学 · 物理学 2024-08-27 O. S. Stashko , V. I. Zhdanov

In this work, we have investigated the outcome of gravitational collapse in Husain space-time in the presence of electro-magnetic and a scalar field with potential. In order to study the nature of the singularity, global behavior of radial…

广义相对论与量子宇宙学 · 物理学 2012-03-12 Ujjal Debnath , Prabir Rudra , Ritabrata Biswas

In this paper, we investigate the dynamics inside and outside of black-branes in anti de Sitter space by numerical simulations using double-null formalism. We prepare a charged planar matter shell which, due to a negative cosmological…

高能物理 - 理论 · 物理学 2013-11-05 Jakob Hansen , Bum-Hoon Lee , Chanyong Park , Dong-han Yeom

We prove global stability for the Charge-Scalar Field system on a background spacetime which is close to $1+3$-dimensional Minkowski space and whose outward light cones converge to those for the Schwarzschild metric at null infinity. The…

偏微分方程分析 · 数学 2021-09-02 Christopher Kauffman