With the recent data from the first year of the Dark Energy Survey (DES Y1), we attempt to probe whether there is new physics beyond the standard cosmology and to reconcile the ${\sigma }_8$ tension between the DES Y1 and Planck datasets in three alternative cosmological models. Combining the galaxy clustering and weak gravitational lensing data from the DES Y1 with other cosmological observations including cosmic microwave background radiation, baryon acoustic oscillations, Type Ia supernovae (SNe Ia) and Planck lensing, we find that: (i) For the interacting dark energy model, we have an updated constraint on the modified matter expansion rate $ϵ=-0.00004\pm 0.00031$, which indicates that there is no hint of interaction between dark matter and dark energy in the dark sector of the universe; (ii) For the viscous dark energy model, up to now, the strictest constraint on the bulk viscosity coefficient $\eta <0.00152$ at the $2\sigma$ confidence level is obtained; (iii) For the dynamical dark energy model, our constraint on the typical parameter $\beta =-0.04\pm 0.12$ implies that there is still no evidence of dynamical dark energy. Meanwhile, we find the ${\sigma }_8$ tension can be effectively alleviated in the above three alternatives by constraining them with the DES Y1 and Planck datasets separately.

根据暗能量调查第一年（DES Y1）的最新数据，我们试图探查是否存在除了标准宇宙学之外的新物理学，并调和 ${\sigma }_8$三种替代宇宙学模型中DES Y1和普朗克数据集之间的张力。将来自DES Y1的星系聚类和弱引力透镜数据与其他宇宙学观察结果结合在一起，包括宇宙微波背景辐射，重子声振荡，Ia型超新星（SNe Ia）和普朗克透镜，我们发现：（i）对于相互作用的暗能量模型，我们对修改后的物质扩展率有了更新的约束$ϵ=-0。00004\pm 0。00031$，这表明在宇宙暗区中暗物质与暗能量之间没有相互作用的迹象；（ii）对于粘性暗能量模型，到目前为止，对体积黏度系数的最严格约束$\eta <0。00152$ 在 $\mathrm{2个}\sigma$获得置信度；（iii）对于动态暗能量模型，我们对典型参数的约束$\beta =-0。04\pm 0。12$这意味着仍然没有动态暗能量的证据。同时，我们发现${\sigma }_8$ 通过分别用DES Y1和Planck数据集对其进行约束，可以有效地缓解上述三种选择中的张力。