English

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 Λ\LambdaCDM evolution, have the potential of addressing the tensions between early and late time measurements of H0H_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.

Keywords

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