Can scale-dependent cosmology alleviate the H 0 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 ΛCDM evolution, have...

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Bibliographic Details
Published inJournal of cosmology and astroparticle physics Vol. 2021; no. 6; p. 19
Main Authors Alvarez, Pedro D., Koch, Benjamin, Laporte, Cristobal, Rincón, Ángel
Format Journal Article
LanguageEnglish
Published 01.06.2021
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Summary: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 ΛCDM 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.
ISSN:1475-7516
1475-7516
DOI:10.1088/1475-7516/2021/06/019