Anisotropic cloud string cosmological model with five-dimensional kaluza-klein space-time

Abstract

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Anisotropic cloud string cosmological models has been investigated in the context of five dimensional Kaluza- Klein space time. In this paper the energy momentum tensor is generated by rest energy density and tension density of the string with particle density attached to them. To obtained the exact solutions of the Einstein field equations we assumed a scale factor a(t)=e1β2βt+c where β and c are positive constant, which yields a variable deceleration parameter (DP) q=−aäȧ2=βH+α. The physical and geometrical behavior of the models is also discussed in detail.

Keywords

• kaluza-klein space time
• string tension density
• particle density
• variable deceleration parameter
• cloud string