Attempts at vacuum counterexamples to cosmic censorship in AdS
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep02(2019)092
Abstract: A bstractWe consider vacuum solutions of four dimensional general relativity with Λ < 0. We numerically construct stationary solutions that asymptotically approach a boundary metric with differential rotation. Smooth solutions only exist up to a… read more here.
Keywords: counterexamples cosmic; attempts vacuum; vacuum counterexamples; rotation ... See more keywords
Charged particle production rate from cosmic censorship in dilaton black hole spacetimes
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep10(2019)129
Abstract: Abstract Hiscock and Weems showed that under Hawking evaporation, an isolated asymptotically flat Reissner-Nordström (RN) black hole evolves in a surprising manner: if it starts with a relatively small value of charge-to-mass ratio Q/M, then… read more here.
Keywords: charged particle; particle production; black hole; cosmic censorship ... See more keywords
Cosmic censorship conjecture in a general Kerr–Newman black hole
Sign Up to like & getrecommendations! Published in 2020 at "Annals of Physics"
DOI: 10.1016/j.aop.2020.168271
Abstract: Using some probes, the violation of cosmic censorship conjecture in a general Kerr-Newman black hole is investigated. The result depends on many factors, like the relative sign of charge and rotation direction of the probe… read more here.
Keywords: cosmic censorship; black hole; censorship conjecture; hole ... See more keywords
Wormhole cosmic censorship: an analytical proof
Sign Up to like & getrecommendations! Published in 2018 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/aaf336
Abstract: In this work we present an analytical proof of cosmic censorship in a Kerr-like phantom wormhole (WH) which contains a singularity that is not protected by an event horizon. We show that the naked singularity… read more here.
Keywords: cosmic censorship; censorship analytical; wormhole cosmic; analytical proof ... See more keywords
Strong cosmic censorship for charged de Sitter black holes with a charged scalar field
Sign Up to like & getrecommendations! Published in 2019 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/aafcf2
Abstract: OJCD is supported by the STFC Ernest Rutherford Grants No. ST/K005391/1 and No. ST/M004147/1, and by the STFC "Particle Physics Grants Panel (PPGP) 2016" Grant No. ST/P000711/1. HSR and JES were supported in part by… read more here.
Keywords: strong cosmic; censorship charged; black holes; charged sitter ... See more keywords
Charged particle and strong cosmic censorship in Reissner–Nordström–de Sitter black holes
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.100.124001
Abstract: We investigate the instability of the unstable circular orbit of a charged null particle to test the strong cosmic censorship conjecture in the near-extremal Reissner-Nordstrom-de Sitter black hole. The instability is estimated as the Lyapunov… read more here.
Keywords: sitter black; reissner; strong cosmic; particle ... See more keywords
Cosmic censorship conjecture in some matching spherical collapsing metrics
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.95.064025
Abstract: A physically plausible Lema{\^{\i}}tre-Tolman-Bondi collapse in the marginally bound case is considered. By "physically plausible" we mean that the corresponding metric is ${\cal C}^1$ matched at the collapsing star surface and further that its {\em… read more here.
Keywords: censorship conjecture; cosmic censorship; matching spherical; conjecture matching ... See more keywords
Testing the Weak Gravity - Cosmic Censorship Connection
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.97.066005
Abstract: 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 Einstein-Maxwell-$\Lambda$ theory would be… read more here.
Keywords: gravity conjecture; censorship; connection; weak gravity ... See more keywords
Quasinormal Modes and Strong Cosmic Censorship.
Sign Up to like & getrecommendations! Published in 2018 at "Physical review letters"
DOI: 10.1103/physrevlett.120.031103
Abstract: The fate of Cauchy horizons, such as those found inside charged black holes, is intrinsically connected to the decay of small perturbations exterior to the event horizon. As such, the validity of the strong cosmic… read more here.
Keywords: quasinormal modes; strong cosmic; black holes; modes strong ... See more keywords
Cosmic censorship in overcharging the Reissner–Nordström anti-de-Sitter black hole with Global Monopole charge
Sign Up to like & getrecommendations! Published in 2020 at "Modern Physics Letters A"
DOI: 10.1142/s0217732320501400
Abstract: We investigate the cosmic censorship hypothesis for the Reissner–Nordström anti-de-Sitter black holes with global monopole charge. Considering the motion of the particle, we find that the overcharging is possible only for the anti-de-Sitter black hole… read more here.
Keywords: anti sitter; black hole; cosmic censorship; sitter black ... See more keywords
Examining the weak cosmic censorship conjecture by gedanken experiments for an Einstein–Maxwell–Dilaton–Axion black hole
Sign Up to like & getrecommendations! Published in 2020 at "Modern Physics Letters A"
DOI: 10.1142/s0217732320503356
Abstract: In the framework of the new version of the gedanken experiments proposed by Sorce and Wald, we investigate the weak cosmic censorship conjecture (WCCC) for an Einstein–Maxwell–Dilaton–Axion (EMDA) ... read more here.
Keywords: maxwell dilaton; gedanken experiments; einstein maxwell; weak cosmic ... See more keywords