arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1307.0458astro-ph.CO
收藏

暗物质与暗能量的耦合模型

Models of coupled dark matter to dark energy

A. Pourtsidou, C. Skordis, E. J. Copeland

摘要:

我们提出了三种不同类型的模型的暗能量的标量场的形式是明确耦合到暗物质。我们的建设借鉴了拉回形式主义的流体和概括的流体行动,涉及耦合的标量场。我们在背景和线性扰动水平上研究了每一类模型的宇宙学。我们为每一类模型选择了标量场的势和特定的耦合函数,并计算了宇宙微波背景和物质的功率谱。

英文摘要:

We present three distinct types of models of dark energy in the form of a scalar field which is explicitly coupled to dark matter. Our construction draws from the pull-back formalism for fluids and generalises the fluid action to involve couplings to the scalar field. We investigate the cosmology of each class of model both at the background and linearly perturbed level. We choose a potential for the scalar field and a specific coupling function for each class of models and we compute the Cosmic Microwave Background and matter power spectra.

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。

↑