论文标题
在扩展方案中没有Planck数据的EDE证据
No evidence for EDE from Planck data in extended scenarios
论文作者
论文摘要
ACT CMB实验的最新数据发布（与先前的WMAP数据结合使用）显示了早期黑暗能源成分的证据，其标准偏差超过$ 3 $。当来自Planck实验限制到中间角度尺度（$ L \ le 650 $）时，最近显示了同样的结论，而当考虑到完整的Planck数据集时，它消失了。但是，已经表明，完整的Planck数据集表现出异常的镜头组件，并且在三个标准偏差的水平下偏爱封闭的宇宙。因此，研究这些异常是否可以与早期的深色能量成分进行抗衡并在参数提取过程中隐藏其存在是至关重要的。在这里，我们证明了扩展参数的选择为曲率，暗能量和镜头幅度$ a_l $的状态方程对EDE的Planck约束没有影响。在实践中，EDE不能解决Planck角光谱异常。这表明当前的EDE组件的CMB证据本质上来自ACT-DR4数据集。
The latest data release from the ACT CMB experiment (in combination with previous WMAP data) shows evidence for an Early Dark Energy component at more than $3$ standard deviations. The same conclusion has been recently shown to hold when temperature data from the Planck experiment limited to intermediate angular scales ($l \le 650$) are included while it vanishes when the full Planck dataset is considered. However, it has been shown that the full Planck dataset exhibits an anomalous lensing component and a preference for a closed universe at the level of three standard deviation. It is therefore of utmost importance to investigate if these anomalies could anti-correlate with an early dark energy component and hide its presence during the process of parameter extraction. Here we demonstrate that extended parameters choices as curvature, equation of state of dark energy and lensing amplitude $A_L$ have no impact on the Planck constraints on EDE. In practice, EDE does not solve Planck angular spectra anomalies. This indicates that current CMB evidence for an EDE component comes essentially from the ACT-DR4 dataset.
