Can scale-dependent cosmology alleviate the $H_0$ tension?
General Relativity and Quantum Cosmology
2021-06-23 v2 High Energy Physics - Theory
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.
Cite
@article{arxiv.2009.02311,
title = {Can scale-dependent cosmology alleviate the $H_0$ tension?},
author = {Pedro D. Alvarez and Benjamin Koch and Cristobal Laporte and Angel Rincon},
journal= {arXiv preprint arXiv:2009.02311},
year = {2021}
}
Comments
revised version, accepted for publication in JCAP