Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2006-09-14
Phys.Lett.B642:421-425,2006
Physics
High Energy Physics
High Energy Physics - Theory
10 pages, no figure, some references added
Scientific paper
10.1016/j.physletb.2006.10.014
In this paper we consider the bulk-brane interaction to obtain the equation of state for the holographic energy density in non-flat universe enclosed by the event horizon measured from the sphere of horizon named $L$. We assumes that the cold dark matter energy density on the brane is conserved, but the holographic dark energy density on the brane is not conserved due to brane-bulk energy exchange. Our calculation show, taking $\Omega_{\Lambda}=0.73$ for the present time, the lower bound of $w_{\rm \Lambda}^{eff}$ is -0.9. This implies that one can not generate phantom-like equation of state from an interacting holographic dark energy model in non-flat universe.
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