论文标题
幻影交叉和$ H_0 $张力的暗能量
Dark Energy with Phantom Crossing and the $H_0$ tension
论文作者
论文摘要
我们研究了黑暗能源部门幻影交叉的可能性，并研究了早期和晚期观测之间哈勃张力的解决方案。为此，我们使用不同的宇宙学观测值，即CMB，局部测量（$ H_0 $），BAO和SNIA的强大组合。 For a combination of CMB+BAO data which is related to early Universe physics, phantom crossing in the dark energy sector is confirmed at $95$\% confidence level and we obtain the constraint $H_0=71.0^{+2.9}_{-3.8}$ km/s/Mpc at 68\% confidence level which is in perfect agreement with the local measurement by Riess et al.我们表明，来自不同数据组合的约束彼此一致，并且它们都与黑暗能源部门的幻影交叉一致。对于所有数据的组合，我们获得约束$ h_0 = 70.25 \ pm 0.78 $ km/s/mpc的68 \％置信度，以及在68 \％prusitive pusitivants calial profacte $ a_m = 0.851^{+0.031} _ { - 0.031} $ pusitive the Scale系数$ a_m = 0.851^{+0.851^{+0.851^{+0.031} $。
We investigate the possibility of phantom crossing in the dark energy sector and solution for the Hubble tension between early and late universe observations. We use robust combinations of different cosmological observations, namely the CMB, local measurement of Hubble constant ($H_0$), BAO and SnIa for this purpose. For a combination of CMB+BAO data which is related to early Universe physics, phantom crossing in the dark energy sector is confirmed at $95$\% confidence level and we obtain the constraint $H_0=71.0^{+2.9}_{-3.8}$ km/s/Mpc at 68\% confidence level which is in perfect agreement with the local measurement by Riess et al. We show that constraints from different combination of data are consistent with each other and all of them are consistent with phantom crossing in the dark energy sector. For the combination of all data considered, we obtain the constraint $H_0=70.25\pm 0.78$ km/s/Mpc at 68\% confidence level and the phantom crossing happening at the scale factor $a_m=0.851^{+0.048}_{-0.031}$ at 68\% confidence level.
