Non-flat universe and interacting dark energy model

Details Non-flat universe and interacting dark energy model Non-flat universe and interacting dark energy model

2006-12-19

arxiv.org/abs/gr-qc/0612112v2

Phys.Lett.B648:107-112,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, 4 figures, version to appear in PLB

Scientific paper

10.1016/j.physletb.2007.03.020

For non-flat universe of $k\not=0$, we investigate a model of the interacting holographic dark energy with cold dark matter (CDM). There exists a mixture of two components arisen from decaying of the holographic dark energy into CDM. In this case we use the effective equations of state ($\omega^{\rm eff}_{\rm \Lambda}, \omega^{\rm eff}_{\rm m}$) instead of the native equations of state ($\omega_{\rm \Lambda},\omega_{\rm m})$. Consequently, we show that interacting holographic energy models in non-flat universe cannot accommodate a transition from the dark energy to the phantom regime.

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