Evolution of the interacting viscous dark energy model in Einstein cosmology
Apr, 2009Citations per year
Abstract: (arXiv)
In this paper we investigate the evolution of the viscous cosmology model which the dark energy interacting with the dark matter. Using the linearizing theory of dynamical system, we find, in our model, there exists a stable late time scaling solution which corresponds to the accelerating universe. But we also find the unstable solution under some appropriated parameters. In order to alleviate the coincidence problem some authors considered the effect of quantum correction due to the conform anomaly and the interacting dark energy model. But if we take into account the bulk viscosity of the cosmic fluid, the viscosity will soften the coincidence problem as the interacting dark energy cosmology model. That's to say both the non-perfect fluid model and the interacting models of the dark energy can alleviate or soften the singularity of the universe.- 98.80.Cq
- dark energy: interaction
- fluid
- correction: quantum
- viscosity
- dynamical system
- singularity
- dark matter
- stability
- anomaly: conformal
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