Super-acceleration on the Brane by Energy Flow from the Bulk

dc.creatorCai, Rong-Gen
dc.creatorGong, Yungui
dc.creatorWang, Bin
dc.date2005-11-30
dc.date2006-02-23
dc.date.accessioned2026-07-07T10:45:21Z
dc.date.available2026-07-07T10:45:21Z
dc.descriptionWe consider a brane cosmological model with energy exchange between brane and bulk. Parameterizing the energy exchange term by the scale factor and Hubble parameter, we are able to exactly solve the modified Friedmann equation on the brane. In this model, the equation of state for the effective dark energy has a transition behavior changing from $w_{de}^{eff}>-1$ to $w_{de}^{eff}<-1$, while the equation of state for the dark energy on the brane has $w>-1$. Fitting data from type Ia supernova, Sloan Digital Sky Survey and Wilkinson Microwave Anisotropy Probe, our universe is predicted now in the state of super-acceleration with $w_{de0}^{eff}=-1.21$.
dc.descriptionRevtex, 11 pages including 2 figures,v2: tpos fixed, references added, to appear in JCAP
dc.identifierhttps://arxiv.org/abs/hep-th/0511301
dc.identifierhttp://arxiv.org/abs/hep-th/0511301
dc.identifierJCAP0603:006,2006
dc.identifierdoi:10.1088/1475-7516/2006/03/006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/182889
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleSuper-acceleration on the Brane by Energy Flow from the Bulk
dc.typetext

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