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paper

Interacting polytropic gas model of phantom dark energy in non-flat universe

arXiv:0911.4915 · doi:10.1140/epjc/s10052-009-1120-1

Abstract

By introducing the polytropic gas model of interacting dark energy, we obtain the equation of state for the polytropic gas energy density in a non-flat universe. We show that for even polytropic index by choosing $K>Ba^{\frac{3}{n}}$, one can obtain $ω^{\rm eff}_Λ<-1$, which corresponds to a universe dominated by phantom dark energy.

7 pages