English

Preliminary test of cosmological models in the scale-dependent scenario

General Relativity and Quantum Cosmology 2018-07-13 v3 High Energy Physics - Theory

Abstract

In the present work, we study for the first time a scale--dependent gravitational theory in a cosmological context in a matter--dominated era. In particular, starting from the Einstein Hilbert action with cosmological constant assuming scale--dependent couplings, we derive the corresponding effective Friedmann equations for the model and we solve them. We analyse in detail our results by comparing them with observational Λ\LambdaCDM data as well as the very well-known running vacuum models. Finally, we have provided, in figures, the evolution of the Hubble parameter respect to the redshift as well as the gravitational coupling respect to the Hubble parameter and they show an agreement with the current observations.

Keywords

Cite

@article{arxiv.1802.05288,
  title  = {Preliminary test of cosmological models in the scale-dependent scenario},
  author = {A. Hernández-Arboleda and Á. Rincón and B. Koch and E. Contreras and P. Bargueño},
  journal= {arXiv preprint arXiv:1802.05288},
  year   = {2018}
}

Comments

16 pages, 4 figures, 1 table, some citations corrected