Reconstruction of modified gravity with ghost dark energy models

Details Reconstruction of modified gravity with ghost dark energy models Reconstruction of modified gravity with ghost dark energy models

2012-01-16

arxiv.org/abs/1201.3200v1

Physics

High Energy Physics

High Energy Physics - Theory

11 pages

Scientific paper

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.

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