Tuesday, May 8, 2012

1201.3200 (A. Khodam-Mohammadi et al.)

Reconstruction of modified gravity with ghost dark energy models    [PDF]

A. Khodam-Mohammadi, M. Malekjani, M. Monshizadeh
In this work, we reconstruct the $f(R)$ modified gravity for different ghost and generalized ghost dark energy models in FRW flat universe, which describe the accelerated expansion of the universe. The equation of state of reconstructed $f(R)$ - gravity has been calculated. We show that the corresponding $f(R)$ gravity of ghost dark energy model can behave like phantom or quintessence. We also show that the equation of state of reconstructed $f(R)$ gravity for generalized ghost model can transit from quintessence regime to the phantom regime as indicated by recent observations.
View original: http://arxiv.org/abs/1201.3200

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