paper

Can scale-dependent cosmology alleviate the tension?

arXiv:2009.02311 · doi:10.1088/1475-7516/2021/06/019

Abstract

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 CDM evolution, have the potential of addressing the tensions between early and late time measurements of . 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.

revised version, accepted for publication in JCAP

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