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Stability of black holes in de Sitter space
Phys. Rev. D 41, 403 – Published 15 January, 1990
DOI: https://doi.org/10.1103/PhysRevD.41.403
Abstract
The theory of black-hole perturbations is extended to charged black holes in de Sitter space. These spacetimes have wormholes connecting different asymptotic regions. It appears that, at least in some cases, these holes are stable even at the Cauchy horizon. It follows that they violate cosmic censorship and an observer could in principle travel through the black hole to another universe. The stability of these spacetimes also implies the existence of a cosmological "no hair" theorem.
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