期刊
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
卷 -, 期 6, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1475-7516/2021/06/019
关键词
cosmology of theories beyond the SM; gravity; modified gravity
资金
- DI-VRIEA through Proyecto Postdoctorado 2019 VRIEA-PUCV
- MINEDUC-UA project [ANT 1755]
- Universidad de Antofagasta, Chile [SEM18-02]
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.
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.
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