Vacuum Bubble in an Inhomogeneous Cosmology

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dc.creatorFischler, Willy
dc.creatorKrishnan, Chethan
dc.creatorPaban, Sonia
dc.creatorZanic, Marija
dc.date2007-11-21
dc.date2008-04-10
dc.date.accessioned2026-07-07T11:38:51Z
dc.date.available2026-07-07T11:38:51Z
dc.descriptionWe study the propagation of bubbles of new vacuum in a radially inhomogeneous Lemaitre-Tolman-Bondi background that includes a cosmological constant. This exemplifies the classical evolution of a tunneling bubble through a metastable state with curvature inhomogeneities, and will be relevant in the context of the Landscape. We demand that the matter profile in the LTB background satisfy the weak energy condition. For sample profiles that satisfy this restriction, we find that the evolution of the bubble (in terms of the physically relevant coordinates intrinsic to the shell) is largely unaffected by the prsence of local inhomogeneities. Our setup should also be a useful toy model for capturing the effects of ambient inhomogeneities on an inflating region.
dc.description31 pages, 21(!) figures, v2: minor changes, figures re-sized (might require zoom on some systems), references added
dc.identifierhttps://arxiv.org/abs/0711.3417
dc.identifierhttp://arxiv.org/abs/0711.3417
dc.identifierJHEP0805:041,2008
dc.identifierdoi:10.1088/1126-6708/2008/05/041
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199714
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleVacuum Bubble in an Inhomogeneous Cosmology
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