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

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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 an even polytropic index by choosing \(K>Ba^{\frac{3}{n}}\) , one can obtain ω eff Λ <−1, which corresponds to a universe dominated by phantom dark energy.

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Correspondence to K. Karami.

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Karami, K., Ghaffari, S. & Fehri, J. Interacting polytropic gas model of phantom dark energy in non-flat universe. Eur. Phys. J. C 64, 85–88 (2009). https://doi.org/10.1140/epjc/s10052-009-1120-1

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  • DOI: https://doi.org/10.1140/epjc/s10052-009-1120-1

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