arXiv 0804.45862008-04hep-thastro-ph.CO

Oscillating Universe from inhomogeneous EoS and coupled dark energy

Diego Sáez-Gómez

备注：: 8 pages, 2 figures; added references
发表信息：: Grav.Cosmol.15:134-140,2009
DOI：: 10.1134/S0202289309020054

英文摘要：

An occurrence of an oscillating Universe is showed using an inhomogeneous equation of state for dark energy fluid. The Hubble parameter described presents a periodic behavior such that early and late time acceleration are unified under the same mechanism. Also, it is considered a coupling between dark energy fluid, with homogeneous and constant EoS, and matter, that gives a periodic Universe too. The possible phantom phases and future singularities are studied in the oscillating Universe under discussion. The equivalent scalar-tensor representation for the same oscillating Universe is presented too.

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