The oscillating dark energy: future singularity and coincidence problem

Details The oscillating dark energy: future singularity and coincidence problem The oscillating dark energy: future singularity and coincidence problem

2006-03-08

arxiv.org/abs/hep-th/0603062v4

Phys.Lett.B637:139-148,2006

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX file, 9 pages, version to appear in PLB

Scientific paper

10.1016/j.physletb.2006.04.026

We consider the oscillating dark energy with periodic equation of state in two equivalent formulations: ideal fluid or scalar-tensor theory. It is shown that such dark energy suggests the natural way for the unification of early-time inflation with late-time acceleration. We demonstrate how it describes the transition from deceleration to acceleration or from non-phantom to phantom era and how it solves the coincidence problem. The occurence of finite-time future singularity for the oscillating (phantom) universe is also investigated.

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