Phantom crossing in viable $f(R)$ theories
arXiv:1108.2557 · doi:10.1142/S0218271811019517
Abstract
We review the equation of state for dark energy in modified gravity theories. In particular, we summarize the generic feature of the phantom divide crossing in the past and future in viable $f(R)$ gravity models.
7 pages, 3 figures, talk presented at the 2nd International Workshop on Dark Matter, Dark Energy and Matter-Antimatter Asymmetry, Hsinchu, Taiwan, 5-6 Nov 2010