论文标题
依赖比例的宇宙学可以减轻$ H_0 $张力吗？
Can scale-dependent cosmology alleviate the $H_0$ tension?
论文作者
论文摘要
比例依赖性是所有有效量子重力模型的共同特征。在本文中，提出了基于重力尺度依赖性场景的宇宙学模型。据认为，这种模型的依赖性作为对经典$λ$ CDM演变的校正，具有解决$ H_0 $的早期和晚期测量之间的紧张局势的潜力。在定义了参数张力的标准之后，我们在符合这些标准的情况下对比例依赖性模型的参数空间进行了数值扫描。在此分析中，发现确实可以释放张力。
Scale-dependence is a common feature to all effective models of quantum gravity. In this paper, a cosmological model based on the scale-dependent scenario of gravity is presented. It is argued that such models, where the scale-dependence appears as a correction to the classical $Λ$CDM evolution, have the potential of addressing the tensions between early and late time measurements of $H_0$. After defining criteria to parametrize this tension, we perform a numerical scan over the parameter space of the scale-dependent model, subject to these criteria. In this analysis, it is found that, indeed, the tension can be released.
