Preprint

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

Bobomurat AhmedovInstitute of Space Sciences and Astronomy , University of Malta , Malta , MSD 2080Konstantinos F. DialektopoulosDepartment of Mathematics and Computer Science , Transilvania University of Brasov , 500091 , Brasov , RomaniaJackson Levi SaidInstitute of Space Sciences and Astronomy , University of Malta , Malta , MSD 2080 andAbdurakhmon NosirovNew Uzbekistan University , Movarounnahr street 1 , Tashkent 100000 , Uzbekistan andZinovia OikonomopoulouInstitute of Space Sciences and Astronomy , University of Malta , Malta , MSD 2080Odil YunusovDepartment of Physics , University of Malta , Malta

2023en

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ABI

Annotatsiya

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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DOI: 10.48550/arxiv.2311.11977

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