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

The European Physical Journal C volume 64, pages 85–88 (2009)Cite this article

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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Authors and Affiliations

  1. Department of Physics, University of Kurdistan, Pasdaran St., Sanandaj, Iran

    K. Karami, S. Ghaffari & J. Fehri

  2. Research Institute for Astronomy & Astrophysics of Maragha (RIAAM), Maragha, Iran

    K. Karami

Authors
  1. K. Karami
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  2. S. Ghaffari
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  3. J. Fehri
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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

Keywords

  • Dark Energy
  • Dark Energy Model
  • Cold Dark Matter
  • Holographic Dark Energy
  • Polytropic Index