New instabilities of de Sitter spacetimes

Details New instabilities of de Sitter spacetimes New instabilities of de Sitter spacetimes

2010-01-13

arxiv.org/abs/1001.2266v1

Phys.Rev.D81:084031,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

19 pages, 1 figure

Scientific paper

10.1103/PhysRevD.81.084031

We construct an instanton describing the pair production of non-Kaluza Klein bubbles of nothing in higher odd dimensional de Sitter spaces. In addition to showing that higher dimensional de Sitter spaces have a nonzero probability to become topologically nontrivial, this process provides direct evidence for the association of entropy with cosmological horizons and that non-Kaluza Klein bubbles of nothing are a necessary ingredient in string theory or any other consistent quantum theory of gravity in higher dimensions.

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