Horizons and Tunneling in the Euclidean False Vacuum

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dc.creatorMarvel, Kate
dc.creatorTurok, Neil
dc.date2007-12-17
dc.date.accessioned2026-07-07T08:49:41Z
dc.date.available2026-07-07T08:49:41Z
dc.descriptionIn the thin-wall approximation, the decay of a gravitating false vacuum to a lower-energy state is affected by the cosmological horizon structure in both spaces. The nucleation radius of a bubble of true vacuum depends on the surface tension of its boundary and equals the false vacuum cosmological horizon at a critical tension. We argue that there is no tunneling instanton solution beyond the critical tension and argue that there is therefore a bound on allowed membrane tension in theories which rely on semiclassical tunneling to relax the cosmological constant.
dc.description8 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/0712.2719
dc.identifierhttp://arxiv.org/abs/0712.2719
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/144387
dc.subjectHigh Energy Physics - Theory
dc.titleHorizons and Tunneling in the Euclidean False Vacuum
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