Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8196256 | Physics Letters B | 2007 | 7 Pages |
Abstract
We discuss the evolution of holographic hessence model, which satisfies the holographic principle and can naturally realize the equation of state crossing â1. By discussing the evolution of the models in the w-wâ² plane, we find that, if c⩾1, whe⩾â1 and VË<0 keep for all time, which are quintessence-like. However, if c<â1, which mildly favors the current observations, whe evolves from whe>â1 to whe<â1, and the potential is a nonmonotonic function. In the earlier time, the potential must be rolled down, and then be climbed up. Considered the current constraint on the parameter c, we reconstruct the potential of the holographic hessence model.
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Authors
Wen Zhao,