FRW in quadratic form of $f(T)$ gravitational theories

Understand

We derive asymptote solution of a homogeneous and isotropic universe governed by the quadratic form of the field equation of $f(T)$ gravity.

• We explain how the higher order of the torsion can provide an origin for late accelerated phase of the universe in the FRW.
• The solution makes the scalar torsion $T$ to be a function of the cosmic time $t$.
• We show that for the equation of state $p=\omega \rho$ with $\omega\neq -1$ the scale factor represent late phase of universe.