English

Energy Constraints and $F(T,T_{G})$ Cosmology

General Relativity and Quantum Cosmology 2015-09-23 v1

Abstract

The present paper is elaborated to discuss the energy condition bounds in a modified teleparallel gravity namely F(T,TG)F(T,T_{G}), involving torsion invariant TT and contribution from a term TGT_G, the teleparallel equivalent of the Gauss-Bonnet term. For this purpose, we consider flat FRW universe with matter contents as perfect fluid. We formulate the SEC, NEC, WEC and DEC in terms of some cosmic parameters including Hubble, deceleration, jerk and snap parameters. By taking two interesting models for F(T,TG)F(T,T_{G}) and some recent limits of these cosmic parameters, we explore the constraints on the free parameters present in both assumed models. We also discuss these constraints graphically in terms of cosmic time by taking power law cosmology into account.

Keywords

Cite

@article{arxiv.1503.07413,
  title  = {Energy Constraints and $F(T,T_{G})$ Cosmology},
  author = {Saira Waheed and M. Zubair},
  journal= {arXiv preprint arXiv:1503.07413},
  year   = {2015}
}

Comments

24 pages, 11 figures