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Título: | Higher-order coupled quintessence |
Autor: | López Honórez, Laura CSIC ORCID; Mena, Olga CSIC ORCID; Panotopoulos, Grigoris CSIC ORCID | Fecha de publicación: | 22-dic-2010 | Editor: | American Physical Society | Citación: | Physical Review - Section D - Particles and Fields 82 (12): 123525 (2010) | Resumen: | 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. | Versión del editor: | http://dx.doi.org/10.1103/PhysRevD.82.123525 | URI: | http://hdl.handle.net/10261/42443 | DOI: | 10.1103/PhysRevD.82.123525 | ISSN: | 1550-7998 |
Aparece en las colecciones: | (IFIC) Artículos |
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Higher-order.pdf | 465,6 kB | Adobe PDF | Visualizar/Abrir |
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