English

Stable bouncing solutions in Teleparallel Horndeski gravity: violations of the no-go theorem

General Relativity and Quantum Cosmology 2023-11-21 v1

Abstract

In order to have singularity-free solutions at the beginning of the Universe, we need to violate the null energy condition. In the general class of Horndeski gravity, there are healthy NEC-violating solutions, which however are plagued with instabilities or some kind of pathologies in the history of the Universe; this is known as the no-go theorem. In this paper, we study the possibility of stable bouncing solutions in the Teleparallel analog of Horndeski gravity and we show explicitly that there exist healthy violations of the no-go theorem.

Keywords

Cite

@article{arxiv.2311.11977,
  title  = {Stable bouncing solutions in Teleparallel Horndeski gravity: violations of the no-go theorem},
  author = {Bobomurat Ahmedov and Konstantinos F. Dialektopoulos and Jackson Levi Said and Abdurakhmon Nosirov and Zinovia Oikonomopoulou and Odil Yunusov},
  journal= {arXiv preprint arXiv:2311.11977},
  year   = {2023}
}

Comments

18 figures, 12 pages