On the way from matter-dominated era to dark energy universe

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dc.creatorNojiri, Shin'ichi
dc.creatorOdintsov, Sergei D.
dc.creatorStefancic, Hrvoje
dc.date2006-08-24
dc.date2006-10-12
dc.date.accessioned2026-07-07T10:26:02Z
dc.date.available2026-07-07T10:26:02Z
dc.descriptionWe develop the general program of the unification of matter-dominated era with acceleration epoch for scalar-tensor theory or dark fluid. The general reconstruction of single scalar-tensor theory is fulfilled. The explicit form of scalar potential for which the theory admits matter-dominated era, transition to acceleration and (asymptotically deSitter) acceleration epoch consistent with WMAP data is found. The interrelation of the epochs of deceleration-acceleration transition and matter dominance-dark energy transition for dark fluids with general EOS is investigated. We give several examples of such models with explicit EOS (using redshift parametrization) where matter-dark energy domination transition may precede the deceleration-acceleration transition. As some by-product, the reconstruction scheme is applied to scalar-tensor theory to define the scalar potentials which may produce the dark matter effect. The obtained modification of Newton potential may explain the rotation curves of galaxies.
dc.descriptionLaTeX 12 pages, 1 figure, extended version to appear in PRD
dc.identifierhttps://arxiv.org/abs/hep-th/0608168
dc.identifierhttp://arxiv.org/abs/hep-th/0608168
dc.identifierPhys.Rev.D74:086009,2006
dc.identifierdoi:10.1103/PhysRevD.74.086009
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176744
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleOn the way from matter-dominated era to dark energy universe
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