Test fields cannot destroy extremal black holes
General Relativity and Quantum Cosmology
2016-08-30 v2
Abstract
We prove that (possibly charged) test fields satisfying the null energy condition at the event horizon cannot overspin/overcharge extremal Kerr-Newman or Kerr-Newman-anti de Sitter black holes, that is, the weak cosmic censorship conjecture cannot be violated in the test field approximation. The argument relies on black hole thermodynamics (without assuming cosmic censorship), and does not depend on the precise nature of the fields. We also discuss generalizations of this result to other extremal black holes.
Cite
@article{arxiv.1601.06809,
title = {Test fields cannot destroy extremal black holes},
author = {Jose Natario and Leonel Queimada and Rodrigo Vicente},
journal= {arXiv preprint arXiv:1601.06809},
year = {2016}
}
Comments
14 pages, 1 figure; v2: major rewrite, references added, results unchanged; matches final published version