论文标题
预聚类后的黑暗能量早期黑暗能源
Testing dark energy after pre-recombination early dark energy
论文作者
论文摘要
在重组前黑能（EDE）的研究中，重组后的宇宙的演变通常被视为$λcdm$类似，这对应于导致当前加速扩张的暗能量状态的方程为$ W = -1 $。但是，在现实的模型中，$ W $可能正在发展。我们分别考虑$ W $的参数化相对于类似轴轴的红移$ z $的参数化。我们使用了最近的宇宙学数据进行了蒙特卡洛马尔可夫链分析，发现BestFit $ w（z）$与$ w_0 = -1，w_a = 0 $（宇宙学常数）兼容，$ w $的演变仅受到边缘的青睐，因此提高$ $ $ $ {h_0} $的最佳效果几乎没有效果。
In the studies on pre-recombination early dark energy (EDE), the evolution of Universe after recombination is usually regarded as $ΛCDM$-like, which corresponds that the equation of state of dark energy responsible for current accelerated expansion is $w=-1$. However, in realistic models, $w$ might be evolving. We consider the parametrizations of $w$ with respect to the redshift $z$ in Axion-like EDE and AdS-EDE models, respectively. We performed the Monte Carlo Markov chain analysis with recent cosmological data, and found that the bestfit $w(z)$ is compatible with $w_0=-1,w_a=0$ (the cosmological constant) and the evolution of $w$ is only marginally favored, which so has little effect on lifting the bestfit value of ${H_0}$.
