English

Pilgrim Dark Energy in $f(T, T_G)$ cosmology

General Relativity and Quantum Cosmology 2018-10-09 v2

Abstract

We work on the reconstruction scenario of pilgrim dark energy" (PDE) in f(T,TG)f(T, T_G). In PDE model it is assumed that a repulsive force that is accelerating the Universe is phantom type with (wDE<1)(w_{DE}<-1) and it so strong that prevents formation of the black hole. We construct the f(T,TG)f(T, T_G) models and correspondingly evaluate equation of state parameter for various choices of scale factor. Also, we assume polynomial form of f(T,TG)f(T, T_G) in terms of cosmic time and reconstruct HH and wDEw_{DE} in this manner. Through discussion, it is concluded that PDE shows aggressive phantom-like behaviour fors=2s=-2 in f(T,TG)f(T, T_G) gravity.

Keywords

Cite

@article{arxiv.1406.2307,
  title  = {Pilgrim Dark Energy in $f(T, T_G)$ cosmology},
  author = {Surajit Chattopadhyay and Abdul Jawad and Davood Momeni and Ratbay Myrzakulov},
  journal= {arXiv preprint arXiv:1406.2307},
  year   = {2018}
}

Comments

Revised version accepted for publication in "Astrophysics and Space Science", 23 pages, 20 figures