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arXiv · 1009.5263

Higher-order coupled quintessence

Laura Lopez-Honorez·Olga Mena·Grigoris Panotopoulos
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Abstract

We study a coupled quintessence model in which the interaction with the dark matter sector is a function of the quintessence potential. Such a coupling can arise from a field dependent mass term for the dark matter field. The dynamical analysis of a standard quintessence potential coupled with the interaction explored here shows that the system possesses a late time accelerated attractor. In light of these results, we perform a fit to the most recent Supernovae Ia, Cosmic Microwave Background and Baryon Acoustic Oscillation data sets. Constraints arising from weak equivalence principle violation arguments are also discussed.

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Laura Lopez-Honorez, Olga Mena, Grigoris Panotopoulos. 2010-09-27. Higher-order coupled quintessence. https://doi.org/10.1103/physrevd.82.123525

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