Bulg. J. Phys. vol.48 no.4 (2021), pp. 338-348

Bulk Viscous Transient Universe in Five Dimensional f(R, T) Theory of Gravity

R.R. Sahoo1, K.L. Mahanta2
1Department of Physics, College of Engineering Technology, Techno Campus, Mahalaxmi Vihar, Bhubaneswar - 751029 India
2Department of Mathematics, C.V. Raman Global University Vidya Nagar, Mahura, Janla, Bhubaneswar, Khurda - 752054, India
Abstract. We build the 5D cosmological model of the cosmos in the f(R,T) gravity when the cause of gravitation is a bulk viscous fluid. We obtain model for f(R,T) = f1(R) + f2(T) where f1(R) = μR and f2(T) = μT. We find that viscous fluid is influenced by the parameter μ of f(R,T) gravity. By proper tuning of the parameter μ and a proportionality constant k1, the model describes stiff fluid era, radiation dominated era, matter-dominated era, transition era, dark energy (DE) dominated era, phantom era, and quintessence era of the universe. Further, we discuss the different physical and kinematical properties of the models.

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