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Power-law solutions in $f(T)$ gravity

General Physics 2015-05-30 v2 General Relativity and Quantum Cosmology

Abstract

We have considered an action of the form T+f(T)+LmT+f(T)+L_m describing Einstein's gravity plus a function of the torsion scalar. By considering an exact power-law solution we have obtained the Friedmann equation as a differential equation for the function f(T)f(T) in spatially flat universe and obtained the real valued solutions of this equation for some power-law solutions. We have also studied the power-law solutions when the universe enters a Phantom phase and shown that such solutions may exist for some f(T) solutions.

Keywords

Cite

@article{arxiv.1110.3962,
  title  = {Power-law solutions in $f(T)$ gravity},
  author = {M. R. Setare and F. Darabi},
  journal= {arXiv preprint arXiv:1110.3962},
  year   = {2015}
}

Comments

8 pages, minor revision