Anisotropic Universe Models with Perfect Fluid and Dark Energy with Time Varying G and I >

作者：Fayaz V^*; Hossienkhani H; Felegary F

来源：International Journal of Theoretical Physics, 2012, 51(8): 2656-2664.

DOI：10.1007/s10773-012-1146-2

• Anisotropic universe
• Dark energy
• Polytropic gas
• Chaplygin gas

We have investigated general Bianchi type I cosmological models which containing a perfect fluid and dark energy with time varying G and I > that have been presented. The perfect fluid is taken to be one obeying the equation of state parameter, i.e., p=omega I; whereas the dark energy density is considered to be either modified polytropic or the Chaplygin gas. Cosmological models admitting both power-law which is explored in the presence of perfect fluid and dark energy too. We reconstruct gravitational parameter G, cosmological term I >, critical density rho (c) , density parameter Omega, cosmological constant density parameter Omega (I >) and deceleration parameter q for different equation of state. The present study will examine non-linear EOS with a general nonlinear term in the energy density.

• 出版日期2012-8