Anisotropic cosmological models with perfect fluid and dark energy revisited

Abstract

We consider a self-consistent system of Bianchi type-I (BI) gravitational field and a binary mixture of perfect fluid and dark energy. The perfect fluid is taken to be the one obeying the usual equation of state, i.e., $p = ζ\ve$, with $\zeta \in [0,1]$ whereas, the dark energy is considered to be obeying a quintessence-like equation of state. Exact solutions to the corresponding Einstein equations are obtained. The model in consideration gives rise to a Universe which is spatially finite. Depending on the choice of problem parameters the Universe is either close with a space-time singularity, or an open one which is oscillatory, regular and infinite in time.

RevTex, 9 pages, 8 figures

References in corpus (3)

• Anisotropic cosmological models with a perfect fluid and a $\Lambda$ term
• Bianchi type I cosmology with scalar and spinor fields
• Anisotropic cosmological models with perfect fluid and dark energy revisited

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