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The dark energy interacting with the extended Chaplygin gas in F (R,T) gravity formalism

  • Abdelhakim BensaidEmail author
  • Rachid Bouamrane
Original Paper
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Abstract

In this paper, we study the interaction between the extended Chaplygin gas and the dark energy in F(R, T) gravity formalism, where T is the trace of the energy–momentum tensor, and R is the Ricci scalar. Assuming that the total energy density and the total pressure of the universe as a combination of the dark energy and the extended Chaplygin gas, this study was carried out after writing down the modified Friedmann equations for the flat case, and also, we investigated the behaviour of the dark energy density, the pressure and the equation of state parameter for two interaction models, within the simple scenario of the universe. We discuss the effect of the bulk viscosity for each interacting model; we found that both interaction models lead to quintessence phase of the dark energy.

Keywords

Chaplygin gas Viscosity F(R, T) gravity 

PACS Nos.

04.20.−q 04.50.Kd 98.80.−k 
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Notes

Acknowledgements

We would like to thank Prof. Dr Marina Aura DARIESCU and Prof. Dr Ciprian DARIESCU for the help that they gave us for two months of internship at their theoretical physics research group, faculty of physics, Universitatea Alexandru Ioan Cuza Iaşi, România, and for comments that greatly improved the manuscript.

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Copyright information

© Indian Association for the Cultivation of Science 2019

Authors and Affiliations

  1. 1.LEPM, Faculté de PhysiqueUSTO-MBBir El Djir, OranAlgeria

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