Can scale-dependent cosmology alleviate the H0 tension?

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 Lambda 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.

Automated summary

Scale-dependence is a common feature in effective models of quantum gravity. A cosmological model based on this scenario is proposed in this paper to address tensions between early and late time measurements of H-0. Numerical scans over parameter space of the scale-dependent model show that the tension can indeed be relieved.