论文标题
暗物质的比例会减少早期的暗能量吗？
Does the fraction of dark matter diminish with early dark energy?
论文作者
论文摘要
在预混合预聚类的早期黑暗能源（EDE）的分辨率中，哈勃恒定值$ h_0 $的上升通常伴随着所谓的$ s_8 $张力的加剧。受驱动器猜想的启发，我们研究了如果将暗物质的$ f _*$耦合到ede，$ m_ {cdm} \ sim \ exp {（ - 我们使用PlanckCMB，Bao，Pantheon和SH0ES数据集以及DES-Y1数据进行了相关EDE模型的MCMC分析，并发现这样的分数有助于减轻$ S_8 $张力。但是，尽管对于非常小的$ f _*$，允许$ c \ gtrsim 0.1 $，这表明一小部分的暗物质已经逐渐消失，但$ c \ sim0 $也是一致的。
In pre-recombination early dark energy (EDE) resolutions of the Hubble tension, the rise of Hubble constant value $H_0$ is usually accompanied with the exacerbation of so-called $S_8$ tension. Inspired by the swampland conjecture, we investigate what if a fraction $f_*$ of dark matter is coupled to EDE, $m_{cdm}\sim \exp{(-c{|Δϕ_{ede}|\over M_{pl}})}$ with $c\sim {\cal O}(1)$. We perform the MCMC analysis for the relevant EDE models with PlanckCMB, BAO, Pantheon and SH0ES dataset, as well as DES-Y1 data, and find that such a fraction helps to alleviate the $S_8$ tension. However, though $c\gtrsim 0.1$ is allowed for a very small $f_*$, which suggests that a small fraction of dark matter has ever faded with EDE, $c\sim0$ is also consistent.
