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arXiv 1009.5263astro-ph.CO
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高阶耦合五次谐波

Higher-order coupled quintessence

Laura Lopez-Honorez, Olga Mena, Grigoris Panotopoulos

摘要:

我们研究了一个耦合的精粹模型,其中与暗物质部门的相互作用是精粹势的函数。这种耦合可以产生于暗物质场的依赖于场的质量项。对一个标准的精粹势耦合相互作用的动力学分析表明,该系统具有一个迟时加速吸引子。根据这些结果,我们进行了最新的超新星Ia,宇宙微波背景和重子声学振荡数据集的拟合。弱等价原理违反参数所产生的约束进行了讨论。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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