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Cosmic censorship violation in black hole collisions in higher dimensions

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arxiv 1812.05017 v2 pith:PGX6CSN2 submitted 2018-12-12 hep-th gr-qc

classification hep-thgr-qc
keywords blackcensorshipcosmicdowngrowsholeholeslarge
verification ladder T0 review T1 audit T2 compute T3 formal

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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.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Black Hole Ringdown Nonlinearities in the Large-D Limit

    gr-qc 2026-06 unverdicted novelty 6.0 of 10

    In the large-D limit, analytic third-order nonlinear corrections to quasinormal modes improve ringdown modeling accuracy by several orders of magnitude for head-on black hole collisions.

  2. Cosmic censorship in a (dual) collider

    hep-th 2024-11 conditional novelty 6.0 of 10

    In holographic models with a good-singularity ground state, a boost-invariant expanding fluid drives the dual horizon curvature to diverge in classical gravity.

  3. Black hole collisions, instabilities, and cosmic censorship violation at large D

    hep-th 2019-08 conditional novelty 6.0 of 10

    In the large-D approximation, sufficiently spinning black hole mergers form rotating bars whose Gregory-Laflamme-like pinch-off outruns gravitational spin-down for D around 8 or larger, suggesting naked singularity formation.

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