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End Point of the Ultraspinning Instability and Violation of Cosmic Censorship
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We determine the end point of the axisymmetric ultraspinning instability of asymptotically flat Myers-Perry black holes in D = 6 spacetime dimensions. In the non-linear regime, this instability gives rise to a sequence of concentric rings connected by segments of black membrane on the rotation plane. The latter become thinner over time, resulting in the formation of a naked singularity in finite asymptotic time and hence a violation of the weak cosmic censorship conjecture in asymptotically flat higher-dimensional spaces.
Forward citations
Cited by 3 Pith papers
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The Fate of Instability of de Sitter Black Holes at Large $D$
At large D, RN-dS and GB-dS black holes evolve to stationary lumpy solutions on the instability threshold, and in the unstable region their mass localizes into spot-like or ring-like configurations.
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Black hole collisions, instabilities, and cosmic censorship violation at large D
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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Non-linear evolution of five-dimensional black strings in effective field theory
Simulations of 5D black string instability in Einstein-Gauss-Bonnet gravity find that positive Gauss-Bonnet coupling caps curvature growth inside EFT validity, unlike negative coupling.
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