Cosmological Models Filled with Perfect Fluid & Dark Energy in f(R,T) Theory of Gravity

Abstract

In this paper we have investigated the physical behaviour of homogeneous and anisotropic Kaluza-Klein cosmological model in the frame of f(R,T) theory of gravity in the presence of perfect fluid and dark energy. Where R is the Ricci scalar and T is the stress energy tensor of the matter. Here we consider the case when the perfect fluid obeys the following equations of state P_pf = gr_pf with g Î[0,1]. Also we studied the cases when dark energy is given by a quintessence or Chaplygin gas. Some physical properties of the models are also discussed.