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arXiv · 2111.02894

Bouncing cosmology in extended gravity and its reconstruction as dark energy model

A. S. Agrawal·Francisco Tello-Ortiz·B. Mishra·S. K. Tripathy
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Abstract

In this paper, we have presented a bouncing cosmological model of the Universe in an extended theory of gravity. The dynamical behaviour of the model obtained from the flat FLRW space-time along with the violation of null energy condition have been shown. The geometrical parameters show singularity behaviour at the bouncing epoch. The parameters involved in the scale factor play a major role in the bouncing behaviour. In addition, the coupling parameter that resulted in the minimal matter-geometry coupling in the extended gravity has significant role to avoid the singularity of equation of state parameter at the bouncing epoch. Using a linear homogeneous perturbation calculation, we show the stability of the model.

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A. S. Agrawal, Francisco Tello-Ortiz, B. Mishra, S. K. Tripathy. 2021-11-02. Bouncing cosmology in extended gravity and its reconstruction as dark energy model. https://doi.org/10.1002/prop.202100065

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