Braneworld models with a non-minimally coupled phantom bulk field: a simple way to obtain the -1-crossing at late times

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dc.creatorSetare, M. R.
dc.creatorSaridakis, E. N.
dc.date2008-11-26
dc.date2009-01-22
dc.date.accessioned2026-07-07T12:56:48Z
dc.date.available2026-07-07T12:56:48Z
dc.descriptionWe investigate general braneworld models, with a non-minimally coupled phantom bulk field and arbitrary brane and bulk matter contents. We show that the effective dark energy of the brane-universe acquires a dynamical nature, as a result of the non-minimal coupling which provides a mechanism for an indirect "bulk-brane interaction" through gravity. For late-time cosmological evolution and without resorting to special ansatzes or to specific areas of the parameter space, we show that the -1-crossing of its equation-of-state parameter is general and can be easily achieved. As an example we provide a simple, but sufficiently general, approximate analytical solution, that presents the crossing behavior.
dc.description11 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/0811.4253
dc.identifierhttp://arxiv.org/abs/0811.4253
dc.identifierJCAP 0903:002,2009
dc.identifierdoi:10.1088/1475-7516/2009/03/002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/224708
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleBraneworld models with a non-minimally coupled phantom bulk field: a simple way to obtain the -1-crossing at late times
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