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A numerical and analytic treatment is presented here of the evolution of initial data of the kind that was conjectured by Hertog, Horowitz and Maeda to lead to a violation of cosmic censorship. That initial data is essentially a thick…

General Relativity and Quantum Cosmology · Physics 2009-11-10 David Garfinkle

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…

High Energy Physics - Theory · Physics 2009-11-10 Michael Gutperle , Per Kraus

We present a plausible counterexample to cosmic censorship in four dimensional Einstein-Maxwell theory with asymptotically anti-de Sitter boundary conditions. Smooth initial data evolves to a region of arbitrarily large curvature that is…

High Energy Physics - Theory · Physics 2016-09-21 Gary T. Horowitz , Jorge E. Santos , Benson Way

Recently Hertog, Horowitz, and Maeda (HHM) (hep-th/0310054) have proposed that cosmic censorship can be violated in the AdS/CFT context. They argue that for certain initial data there is insufficient energy available to make a black hole…

High Energy Physics - Theory · Physics 2014-11-18 Veronika E. Hubeny , Xiao Liu , Mukund Rangamani , Stephen Shenker

It has been recently argued by Hertog, Horowitz and Maeda, that generic reasonable initial data in asymptotically anti deSitter, spherically symmetric, space-times within an Einstein-Higgs theory, will evolve toward a naked singularity, in…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Miguel Alcubierre , Jose A. Gonzalez , Marcelo Salgado , Daniel Sudarsky

It has been argued that the strong cosmic censorship conjecture is violated by Reissner-Nordstr\"om-de Sitter black holes: for near-extremal black holes, generic scalar field perturbations arising from smooth initial data have finite energy…

General Relativity and Quantum Cosmology · Physics 2018-10-17 Oscar J. C. Dias , Harvey S. Reall , Jorge E. Santos

Domain walls form at phase transitions which break discrete symmetries. In a cosmological context they often overclose the universe (contrary to observational evidence), although one may prevent this by introducing biases or forcing…

Cosmology and Nongalactic Astrophysics · Physics 2018-05-28 J. R. C. C. C. Correia , I. S. C. R. Leite , C. J. A. P. Martins

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,…

High Energy Physics - Theory · Physics 2019-05-06 Tomas Andrade , Roberto Emparan , David Licht , Raimon Luna

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…

General Relativity and Quantum Cosmology · Physics 2010-01-04 Cosimo Bambi

This paper addresses strong cosmic censorship for spacetimes with self-gravitating collisionless matter, evolving from surface-symmetric compact initial data. The global dynamics exhibit qualitatively different features according to the…

General Relativity and Quantum Cosmology · Physics 2025-09-30 Mihalis Dafermos , Alan D. Rendall

A very interesting work that has recently appeared in the physics literature [arXiv:1810.00886] claims that the strong cosmic censorship conjecture, a fundamental cornerstone of black-hole physics, may be violated in asymptotically de…

General Relativity and Quantum Cosmology · Physics 2018-10-12 Shahar Hod

We investigate the possibility of cosmic censorship violation in string theory using a characteristic double-null code, which penetrates horizons and is capable of resolving the spacetime all the way to the singularity. We perform…

High Energy Physics - Theory · Physics 2010-11-19 Andrei V. Frolov

We investigate cosmic censorship in anti-de Sitter space in holographic models in which the ground state is described by a good singularity. These include supersymmetric truncations of string/M-theory, for which a positive-energy theorem…

High Energy Physics - Theory · Physics 2025-01-10 Marc Aragonès Fontboté , David Mateos , Guillem Pérez Martín , Wilke van der Schee , Javier G. Subils

We study the behaviour of a free massive scalar wave-packet near the Cauchy horizon of an $\mathrm{AdS}_2$ black hole and find that it becomes infinitely differentiable for smooth initial data, independently of the parameters describing the…

High Energy Physics - Theory · Physics 2021-06-21 Upamanyu Moitra

We consider general initial data for the Einstein scalar-field system on a closed $3$-manifold $(M,\gamma)$ which is close to data for a Friedman-Lema\^itre-Robertson-Walker solution with homogeneous scalar field matter and a negative…

General Relativity and Quantum Cosmology · Physics 2025-06-25 David Fajman , Liam Urban

We formulate and take two large strides towards proving a quantum version of the weak cosmic censorship conjecture. We first prove "Cryptographic Censorship": a theorem showing that when the time evolution operator of a holographic CFT is…

High Energy Physics - Theory · Physics 2026-02-12 Netta Engelhardt , Åsmund Folkestad , Adam Levine , Evita Verheijden , Lisa Yang

We prove the weak cosmic censorship conjecture in $2+1$ spacetime dimensions for the circularly symmetric Einstein-scalar field system in the presence of a negative cosmological constant $\Lambda<0$. More precisely, we show that for any…

General Relativity and Quantum Cosmology · Physics 2026-05-20 Serban Cicortas

The Ernst spacetime is a solution of the Einstein-Maxwell equations describing two charged black holes accelerating apart in a uniform electric (or magnetic) field. As the field approaches a critical value, the black hole horizon appears to…

General Relativity and Quantum Cosmology · Physics 2009-10-28 Gary T. Horowitz , Harrison J. Sheinblatt

This is the second and last paper of a two-part series in which we prove the $C^2$-formulation of the strong cosmic censorship conjecture for the Einstein-Maxwell-(real)-scalar-field system in spherical symmetry for two-ended asymptotically…

General Relativity and Quantum Cosmology · Physics 2019-02-25 Jonathan Luk , Sung-Jin Oh

We study the evolution of domain wall networks appearing after phase transitions in the early Universe. They exhibit interesting dynamical scaling behaviour which is not yet well understood, and are also simple models for the more…

High Energy Physics - Phenomenology · Physics 2009-11-07 Theodore Garagounis , Mark Hindmarsh
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