Transitions Between de Sitter Minima

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dc.creatorBatra, Puneet
dc.creatorKleban, Matthew
dc.date2006-12-11
dc.date2007-06-28
dc.date.accessioned2026-07-07T11:44:00Z
dc.date.available2026-07-07T11:44:00Z
dc.descriptionWe investigate the cosmological signatures of instantons mediating tunneling between de Sitter minima. For generic potentials the Coleman-de Luccia instanton does not necessarily exist; when it does not, the instanton which contributes to the decay rate is the trivial constant solution, known as the Hawking-Moss instanton. With the aid of a toy model we interpret this solution and describe the resulting cosmology. In neither the Coleman-de Luccia nor Hawking-Moss case can the resulting cosmology be closed. An observation of significant positive curvature would therefore rule out the possibility that our universe arose from any transition from a neighboring minimum in the string-theory landscape.
dc.description19 pages, 3 figures; references added, typos corrected
dc.identifierhttps://arxiv.org/abs/hep-th/0612083
dc.identifierhttp://arxiv.org/abs/hep-th/0612083
dc.identifierPhys.Rev.D76:103510,2007
dc.identifierdoi:10.1103/PhysRevD.76.103510
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201447
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleTransitions Between de Sitter Minima
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