Bulk Viscous String Cosmology with Hybrid Law Expansion in Modified Theory of Gravity

Abstract

The present paper deals with the study of Bulk viscous string cosmological model in spatially homogeneous and anisotropic Bianchi-V space time in modified theory of gravity, specially f(R, T) theory of gravity. To solve the Einstein’s field equations, we consider that the expansion scalar θ is proportional to the shear scalar σ² and hybrid scalar factor which yields a time varying deceleration parameter. We also consider barotropic equation of state for pressure and density. Some physical properties of the model are also discussed in details.