HOLOGRAPHIC MODIFIED GRAVITY

被引：102
作者：
Setare, M. R. [1 ]
机构：
[1] Payame Noor Univ, Dept Sci, Bijar, Iran
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2008年 / 17卷 / 12期
关键词：
Holographic dark energy; modified gravity; equation of state; phantom;
D O I：
10.1142/S0218271808013819
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper, we investigate 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 a spatially flat universe. Our calculation shows that, taking Omega(Lambda) = 0.73 for the present time, it is possible to have w(Lambda) crossing - 1. This implies that one can generate a 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.
引用
收藏
页码：2219 / 2228
页数：10
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