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Polytropic Inspired Inflation on the Brane

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Abstract

The brane inflationary model inspired by a polytropic inflationary idea is studied. In the slow-roll approximation and high energy limit, for a chaotic potential, the model is developed, and its characteristics are discussed. We obtain explicit expressions for the scalar power spectrum, the tensor-scalar ratio, the scalar spectral index and its running in terms of the polytropic parameters. We find a new constraint on the energy scale of the inflation and the brane tension using the WMAP9 data.

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Author information

Authors and Affiliations

  1. Department of Science of Bijar, University of Kurdistan, Bijar, Iran

    M. Setare

  2. Department of Physics, Vali-e-Asr University, Rafsanjan, Iran

    A. Ravanpak

  3. Department of Physics, University of Guilan, Rasht, Iran

    H. Farajollahi

  4. School of Physics, University of New South Wales, Sydney, NSW, 2052, Australia

    H. Farajollahi

Authors
  1. M. Setare
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  2. A. Ravanpak
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  3. H. Farajollahi
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Correspondence to M. Setare.

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Setare, M., Ravanpak, A. & Farajollahi, H. Polytropic Inspired Inflation on the Brane. Gravit. Cosmol. 24, 52–56 (2018). https://doi.org/10.1134/S0202289318010127

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  • DOI: https://doi.org/10.1134/S0202289318010127

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