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STATEFINDER DIAGNOSTIC FOR COUPLED TACHYON DARK ENERGY MODEL
https://doi.org/10.1142/S0217732308024493Cited by:0 (Source: Crossref)
Abstract
In this paper we study the statefinder parameters for the coupled tachyon dark energy model which has two types of stable scaling solutions. It is found that the evolving trajectories of the solutions are different in the statefinder parameters plane. These trajectories lie in the two regions r > 1, s < 0 and r < 1, s > 0, and pass through the LCDM fixed point. So, through the statefinder diagnostic, we not only characterize the properties of the coupled tachyon dark energy model, but also show the difference from other dark energy model.
PACS: 98.80.-k, 98.80.Es
