Attractor solutions for general hessence dark energy

Details Attractor solutions for general hessence dark energy Attractor solutions for general hessence dark energy

2006-02-25

arxiv.org/abs/hep-th/0602268v2

Phys.Rev.D73:083527,2006

Physics

High Energy Physics

High Energy Physics - Theory

11 pages. Add some explanations about the autonomousity of the equations, and also a conclusion section was added. To appear i

Scientific paper

10.1103/PhysRevD.73.083527

As a candidate for the dark energy, the hessence model has been recently introduced. We discuss the critical points of this model in almost general case, that is for arbitrary hessence potential and almost arbitrary hessence-background matter interaction. It is shown that in all models, there always exist some stable late-time attractors. It is shown that our general results coincide with those solutions obtained earlier for special cases, but some of them are new. These new solutions have two unique characteristics. First the hessence field has finite value in these solutions and second, their stabilities depend on the second derivative of the hessence potential.

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