New Agegraphic Dark Energy in $f(R)$ Gravity

Details New Agegraphic Dark Energy in $f(R)$ Gravity New Agegraphic Dark Energy in $f(R)$ Gravity

2009-08-03

arxiv.org/abs/0908.0196v1

Astrophys.Space Sci.326:27-31,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages, no figure

Scientific paper

10.1007/s10509-009-0214-4

In this paper we study cosmological application of new agegraphic dark energy density in the $f(R)$ gravity framework. We employ the new agegraphic model of dark energy to obtain the equation of state for the new agegraphic energy density in spatially flat universe. Our calculation show, taking $n<0$, it is possible to have $w_{\rm \Lambda}$ crossing -1. This implies that one can generate phantom-like equation of state from a new agegraphic 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.

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