Analytical approach of late-time evolution in a torsion cosmology

Understand

In this letter, we study the late-time evolution of a torsion cosmology only with the spin-$0^+$ mode.

• We find three kinds of analytical solutions with a constant affine scalar curvature.
• In the first case, it is not physical because the matter density will be negative.
• In the second case, it shows that the dark energy can be mimicked in the torsion cosmological model.