arXiv (Cornell University) · 2010 · 45 citations · 0 references
Natural SciencesPhysicsCosmologyRelativityTheoretical PhysicsEinstein Field EquationsGeneral RelativityMathematical RelativitySpecial RelativitySingularity Crossing
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 $w_{\mathrm{DE}}=-1$.