Holographic modified gravity

Abstract

In this paper we study cosmological application of holographic dark energy density in the modified gravity framework. We employ the holographic model of dark energy to obtain the equation of state for the holographic energy density in spatially flat universe. Our calculation show, taking ${\Omega }_{\Lambda }=0.73$ for the present time, it is possible to have $w_{\mathrm{\Lambda }}$ crossing -1. This implies that one can generate phantom-like equation of state from a holographic dark energy model in flat universe in the modified gravity cosmology framework. Also we develop a reconstruction scheme for the modified gravity with $f(R)$ action.

10 pages, no gigure

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