Cosmic censorship violation in black hole collisions in higher dimensions

Abstract

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, which grows a neck in its middle that pinches down with diverging curvature. When D is large, the emission of gravitational radiation is strongly suppressed and cannot spin down the system to a stable rotating black hole before the neck grows. The phenomenon is demonstrated using simple numerical simulations of the effective theory in the 1/D expansion. We propose that, even though cosmic censorship is violated, the loss of predictability is small independently of D.

arXiv comment9 pages, 2 figures. v2: matches published version

References in corpus (11)

• Black Strings and p-Branes are Unstable
• Black Strings, Low Viscosity Fluids, and Violation of Cosmic Censorship
• The large D limit of General Relativity
• A critical dimension in the black-string phase transition
• Evolution and endpoint of the black string instability: Large D solution
• End Point of the Ultraspinning Instability and Violation of Cosmic Censorship
• Decoupling and non-decoupling dynamics of large D black holes
• Hydro-elastic Complementarity in Black Branes at large D
• Quasinormal modes of asymptotically flat rotating black holes
• Phases and Stability of Non-Uniform Black Strings
• Rotating black holes and black bars at large D

Cited by in corpus (21)

• The Large D Limit of Einstein's Equations
• Weak cosmic censorship conjecture for Kerr-Taub-NUT black hole with test scalar field and particle
• Spacetime Singularities and Cosmic Censorship Conjecture: A Review with Some Thoughts
• Black hole collisions, instabilities, and cosmic censorship violation at large D
• Destroying the event horizon of a nonsingular rotating quantum-corrected black hole
• End point of nonaxisymmetric black hole instabilities in higher dimensions
• Cosmic Censorship and the Evolution of d-Dimensional Charged Evaporating Black Holes
• Distinguishing Brans-Dicke-Kerr type naked singularities and black holes with their thin disk electromagnetic radiation properties
• Charged Particle Production Rate from Cosmic Censorship in Dilaton Black Hole Spacetimes
• Black Tsunamis and Naked Singularities in AdS
• Predictivity lost, predictivity regained: a Miltonian cosmic censorship conjecture
• Entropy production and entropic attractors in black hole fusion and fission
• Black Ripples, Flowers and Dumbbells at large $D$
• Holography Abhors Visible Trapped Surfaces
• On Black Hole Thermodynamics, Singularity, and Gravitational Entropy
• Test the Weak Cosmic Supervision Conjecture in Dark Matter-Black Hole System
• The Weak Cosmic Censorship Conjecture in Hairy Kerr Black Holes
• The large D effective theory of black strings in AdS
• Overspinning a rotating black hole in semiclassical gravity with type-A trace anomaly
• Black hole interactions at large $D$: brane blobology
• Squashed black holes at large $D$