A String-Inspired Quintom Model Of Dark Energy

Simple item page
dc.creatorCai, Yi-fu
dc.creatorLi, Mingzhe
dc.creatorLu, Jian-Xin
dc.creatorPiao, Yun-Song
dc.creatorQiu, Taotao
dc.creatorZhang, Xinmin
dc.date2007-01-02
dc.date2007-05-23
dc.date.accessioned2026-07-07T11:03:04Z
dc.date.available2026-07-07T11:03:04Z
dc.descriptionWe propose in this paper a quintom model of dark energy with a single scalar field $ϕ$ given by the lagrangian ${\cal L}=-V(ϕ)\sqrt{1-α^\prime\nabla_μϕ\nabla^μϕ+β^\prime ϕ\Boxϕ}$. In the limit of $β^\prime\to$0 our model reduces to the effective low energy lagrangian of tachyon considered in the literature. We study the cosmological evolution of this model, and show explicitly the behaviors of the equation of state crossing the cosmological constant boundary.
dc.description6 pages, 4 figures, accepted by PLB
dc.identifierhttps://arxiv.org/abs/hep-th/0701016
dc.identifierhttp://arxiv.org/abs/hep-th/0701016
dc.identifierPhys.Lett.B651:1-7,2007
dc.identifierdoi:10.1016/j.physletb.2007.05.056
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188461
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleA String-Inspired Quintom Model Of Dark Energy
dc.typetext

Files

Collections

arXiv