Universe Described by Kaluza-Klein Space Time with Viscous Modified Cosmic Chaplygin Gas in General Relativity

摘要

In this paper, we constructed Kaluza-Klein FRW model with modified cosmic Chaplygin gas in presence of bulk viscosity. We used exponential function method (Ganji and Hasheni Kachapi 2011) to solve non-linear differential equation and obtained time dependent dark energy density. We explained the nature of the energy density for different values of parameters through graphical representation briefly. Also, we investigated the nature of the energy density with and without bulk viscosity. Finally we discussed stability of this theory and obtained that, the model does not have any singularity in presence and absence of bulk viscosity.