The w = -1 crossing of the quintom model with slowly-varying potentials

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dc.creatorAlimohammadi, M.
dc.creatorSadjadi, H. Mohseni
dc.date2006-08-03
dc.date2007-03-16
dc.date.accessioned2026-07-07T10:24:25Z
dc.date.available2026-07-07T10:24:25Z
dc.descriptionConsidering the quintom model with arbitrary potential, it is shown that there always exists a solution which evolves from w > -1 region to w < -1 region. The problem is restricted to the slowly varying potentials, i.e. the slow-roll approximation. It is seen that the rate of this phase transition only depends on the energy density of matter at transition time, which itself is equal to the kinetic part of quintom energy density at that time. The perturbative solutions of the fields are also obtained.
dc.description11 pages, LaTeX, some explanations are added and some of the calculations are transfered to the appendix, to be appeared in Phys. Letts. B
dc.identifierhttps://arxiv.org/abs/gr-qc/0608016
dc.identifierhttp://arxiv.org/abs/gr-qc/0608016
dc.identifierPhys.Lett.B648:113-118,2007
dc.identifierdoi:10.1016/j.physletb.2007.03.014
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176179
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleThe w = -1 crossing of the quintom model with slowly-varying potentials
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