Statefinder diagnostic for Born-Infeld type dark energy model with V_(0e)βφ~2 potential

摘要

We investigate in this paper the dynamics of Born-Infeld (B-I) type dark energy model with scalar potential V0eβφ2, and consider the new statefinder diagnostic to differentiate B-I type dark energy model from LCDM which corresponds to statefinder pair {r,s}={1,0}. We study the existence of attractor solution in this model and the evolving trajectory of r-s in our model with this scalar potential. It is numerically shown that the evolving trajectory of r-s is quite different from those of other dark energy models.