Plausible scenario for a generic violation of the weak cosmic censorship conjecture in asymptotically flat four dimensions

We present a plausible counterexample to the weak cosmic censorship conjecture in the four-dimensional Einstein-Scalar theory with asymptotically flat boundary conditions. Our setup stems from the analysis of the massive Klein-Gordon equation on a fixed Kerr black hole background. In particular, we...

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Bibliographic Details
Published in:Physical review. D 2020-02, Vol.101 (4), p.1, Article 041502
Main Authors: Eperon, Felicity C., Ganchev, Bogdan, Santos, Jorge E.
Format: Article
Language:English
Subjects:
Asymptotic properties
Boundary conditions
Censorship
Klein-Gordon equation
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Summary:We present a plausible counterexample to the weak cosmic censorship conjecture in the four-dimensional Einstein-Scalar theory with asymptotically flat boundary conditions. Our setup stems from the analysis of the massive Klein-Gordon equation on a fixed Kerr black hole background. In particular, we construct the quasinormal spectrum numerically, and analytically in the WKB approximation, then go on to compute its backreaction on the Kerr geometry. In the regime of parameters where the analytic and numerical techniques overlap we find perfect agreement. We give strong evidence for the existence of a nonlinear instability at late times.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.101.041502