Bouncing scenario of general relativistic hydrodynamics in extended gravity

doi:10.1088/1572-9494/abcfb2

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Communications in Theoretical Physics ›› 2021, Vol. 73 ›› Issue (2): 025401. doi: 10.1088/1572-9494/abcfb2

• Gravitation Theory, Astrophysics and Cosmology • Previous Articles Next Articles

Bouncing scenario of general relativistic hydrodynamics in extended gravity

A Y Shaikh^1,(),B Mishra^2,()

¹Department of Mathematics, Indira Gandhi Mahavidyalaya, Ralegaon-445402, India
²Department of Mathematics, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Hyderabad-500078, India

Received: 2020-07-12 Revised: 2020-11-14 Accepted: 2020-11-27 Published: 2021-02-01
Contact: B Mishra E-mail:shaikh_2324ay@yahoo.com;bivudutta@yahoo.com

Abstract

Abstract:

In this paper, we have framed bouncing cosmological model of the Universe in the presence of general relativistic hydrodynamics in an extended theory of gravity. The metric assumed here is the flat Friedmann-Robertson-Walker space-time and the stress energy tensor is of perfect fluid. Since general relativity (GR) has certain issues with late time cosmic speed up phenomena, here we have introduced an additional matter geometry coupling that described the extended gravity to GR. The dynamical parameters are derived and analyzed. The dynamical behavior of the equation of state parameter has been analyzed. We have observed that the bouncing behavior is mostly controlled by the coupling parameter.

Key words: FRW metric, extended gravity, bouncing scenario, energy conditions

A Y Shaikh,B Mishra, Commun. Theor. Phys. 73 (2021) 025401.

Figures/Tables 7

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Bouncing scenario of general relativistic hydrodynamics in extended gravity

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