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

Bobomurat Ahmedov; Konstantinos F. Dialektopoulos; Jackson Levi Said; Abdurakhmon Nosirov; Zinovia Oikonomopoulou; Odil Yunusov

arXiv · 2311.11977

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

Bobomurat Ahmedov·Konstantinos F. Dialektopoulos·Jackson Levi Said·Abdurakhmon Nosirov·Zinovia Oikonomopoulou·Odil Yunusov

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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.

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Bobomurat Ahmedov, Konstantinos F. Dialektopoulos, Jackson Levi Said, Abdurakhmon Nosirov, Zinovia Oikonomopoulou, Odil Yunusov. 2023-11-20. Stable bouncing solutions in Teleparallel Horndeski gravity: violations of the no-go theorem. https://arxiv.org/abs/2311.11977

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