论文标题
迈向早期的黑暗能源，$ n_s $ = 1与普朗克，ACT和SPT一起使用
Towards early dark energy and $n_s$=1 with Planck, ACT and SPT
论文作者
论文摘要
我们通过结合可用的CMB观测值，ACT DR4，SPT-3G和Planck2018（$ \ ell_ \ text {tt，max} = 1000 $）数据来研究对早期暗能量（EDE）的限制。该组合的CMB数据集有利于非零EDE分数和大哈勃常数。包含BAO+Pantheon数据对结果几乎没有影响，导致$ H_0 = 71.6（72.9）_ { - 1.5}^{+2.0} $和$ 73.17（72.74）^{+0.55} _ {+0.55} _ { - 0.77} $ km/s/s/s/s/s/s/s/mpc for Axion like and and ads for Adse and and和ads and ads and and and and and and and和ads and ads and and and和ads and and and sike and ade。与$λ$ CDM相比，类似轴轴的EDE可以明显更好地拟合数据（$Δχ^2 \ Lessim -10 $），该数据主要由ACT数据驱动。再次发现，如果当前测量的当前$ H_0 $是正确的，那么对哈勃张力的完全分辨率似乎指向了原始标量扰动的比例不变的Harrison-Zeldovich Spectrum，即$ n_s = 1 $ $ n_s = 1 $ $ h_0 \ sim 73 $ km/s/s/s/mpc。
We investigate the constraints on early dark energy (EDE) by combining the most recent CMB observations available, ACT DR4, SPT-3G, and Planck2018 ($\ell_\text{TT,max}=1000$) data. This combined CMB dataset favors non-zero EDE fractions and large Hubble constants. The inclusion of BAO+Pantheon data has little effect on the results, leads to $H_0=71.6( 72.9)_{-1.5}^{+2.0}$ and $73.17(72.74)^{+0.55}_{-0.77}$ km/s/Mpc for axion-like EDE and AdS-EDE, respectively. The axion-like EDE can fit the data significantly better ($Δχ^2 \lesssim -10$) than $Λ$CDM, which is mainly driven by the ACT data. It is found again that if the current $H_0$ measured locally is correct, complete resolution of the Hubble tension seems to be pointing towards a scale invariant Harrison-Zeldovich spectrum of primordial scalar perturbation, i.e. $n_s=1$ for $H_0\sim 73$ km/s/Mpc.
