Journal
PHYSICAL REVIEW D
Volume 82, Issue 12, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.82.123525
Keywords
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Funding
- CICYT [FPA2009-09017]
- CAM [P-ESP-00346]
- PAU (Physics of the Accelerating Universe)
- F.N.R.S.
- I.I.S.N.
- MICINN Ramon y Cajal [AYA2008-03531, CSD2007-00060]
- Generalitat Valenciana [PROMETEO/2008/004]
- [FPA2008-02878]
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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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