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Constraining the coupling constant between dark energy and dark matter

  • Regular Article - Theoretical Physics
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Abstract

We have investigated constraints on the coupling between dark matter and the interacting Chaplygin gas. Our results indicate that the coupling constant c between these two entities can take arbitrary values, which can be either positive or negative, thus giving arbitrary freedom to the inter-conversion between Chaplygin gas and dark matter. Thus, our results indicate that the restriction 0<c<1 on the coupling constant occurs as a very special case. Our analysis also supports the existence of phantom energy under certain conditions on the coupling constant.

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Authors and Affiliations

  1. Center for Advanced Mathematics and Physics, National University of Sciences and Technology, Peshawar Road, Rawalpindi, 46000, Pakistan

    Mubasher Jamil & Muneer Ahmad Rashid

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  1. Mubasher Jamil
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  2. Muneer Ahmad Rashid
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Correspondence to Mubasher Jamil.

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Jamil, M., Rashid, M.A. Constraining the coupling constant between dark energy and dark matter. Eur. Phys. J. C 60, 141–147 (2009). https://doi.org/10.1140/epjc/s10052-009-0869-6

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  • DOI: https://doi.org/10.1140/epjc/s10052-009-0869-6

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