2006/07/31 by Gustavo Dotti, Reinaldo J. Gleiser, Reinaldo Gleiser +1 · 5 citations
Materials Science · Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Liquid Crystal Research Advancements #Mathematics and Applications #gr-qc
paper · pdf · doi:10.1016/j.physletb.2006.12.004
published as Phys.Lett.B644:289-293,2007 · 5 Pages, RevTex, 2 figures, improved discussion of several points, references added, to appear in Phys. Lett. B
arxiv created 2006/12/05 · openalex publication_date 2006/12/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
We provide evidence that “super-extremal” black hole spacetimes (either with charge larger than mass or angular momentum larger than mass), which contain naked singularities, are unstable under linearized perturbations. This is given by an infinite family of exact unstable solutions in the charged non-rotating case, and by a set of (unstable) numerical solutions in the rotating case. These results may be relevant to the expectation that these spacetimes cannot be the endpoint of physical gravitational collapse.