English

Non-singular bounce solutions in Myrzakulov $f(R,T)$ gravity

General Relativity and Quantum Cosmology 2025-01-31 v1 Cosmology and Nongalactic Astrophysics

Abstract

We investigate the realization of a nonsingular bounce within the framework of Myrzakulov F(R,T) F(R,T) gravity. This modified gravitational theory uses a non-special connection that combines both curvature and torsion, giving rise to an effective sector that can easily satisfy the violation of the null energy condition. We suitably choose the functions that parametrize the connection in order to be able to produce simple and matter bounce scale factors at the background level. Finally, we examine the evolution of scalar perturbations through the bounce using the Mukhanov-Sasaki formalism, and we calculate the power spectrum.

Keywords

Cite

@article{arxiv.2501.18524,
  title  = {Non-singular bounce solutions in Myrzakulov $f(R,T)$ gravity},
  author = {Andreas Lymperis and Gulgassyl Nugmanova and Almira Sergazina},
  journal= {arXiv preprint arXiv:2501.18524},
  year   = {2025}
}

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9 pages