Comment on "Einstein's Other Gravity and the Acceleration of the Universe''

Kazuharu Bamba, Chao-Qiang Geng, Chung-Chi Lee

We show that in the exponential $f(T)$ model studied by E. Linder [arXiv:1005.3039, Phys.Rev.D 81, 127301 (2010)], it is impossible to have the crossing of the phantom divide line…