论文标题
减少$ h_0 $张力，并用指数的声学暗能量
Reducing the $H_0$ Tension with Exponential Acoustic Dark Energy
论文作者
论文摘要
哈勃张力来自晚期和早期宇宙之间的不同观察。我们探索了一个带有深色流体的新模型，称为指数的声学暗能量（EADE）模型，以减轻哈勃张力。 EADE模型给出了声学暗能量中状态方程（EOS）方程的指数形式，这是第一次探索EOS的指数形式。在此模型中，模型的声学振荡的重力效应可能会影响物质辐射同样时期的CMB现象。我们通过当前的宇宙学数据集给出了EADE模型的约束。现象与标准模型的比较可以通过CMB和物质功率谱显示。我们模型的拟合结果具有$ H_0 = 70.06^{+1.13} _ { - 1.09} $ 95 $ \％$ c.l.最佳拟合值大于$λ$ cdm。
The Hubble tension arises from different observations between the late-time and early Universe. We explore a new model with dark fluid, called the exponential Acoustic Dark Energy (eADE) model, to relieve the Hubble tension. The eADE model gives an exponential form of the equation of state (EoS) in the acoustic dark energy, which is the first time to explore an exponential form for the EoS. In this model, the gravitational effects from the acoustic oscillations of the model can impact the CMB phenomena at the matter radiation equally epoch. We give the constraints of the eADE model by the current cosmological dataset. The comparison of the phenomena with the standard model can be shown through CMB and matter power spectra. The fitting results of our model have $H_0 = 70.06^{+1.13}_{-1.09}$ in 95$\%$ C.L. and a smaller best-fit value than $Λ$CDM.
