Renormalization group approaches to Quantum Gravity and Tensions in Modern Cosmology
Cosmology and Nongalactic Astrophysics
2024-10-17 v1 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
Asymptotic Safety is a promising framework towards the understanding, in a non-perturbative way, of Quantum Gravity. It treats the Newton's constant G_N and the cosmological constant \Lambda as running coupling of an effective action. At the phenomenological point of view the values of G_N and \Lambda depend on the energy density of the system under consideration. This fact has interesting astrophysical and cosmological consequences. The present work discusses the effects on the distance measurements from SNIa light curves and on the strong and weak gravitational lensing measurements.
Keywords
Cite
@article{arxiv.2410.11970,
title = {Renormalization group approaches to Quantum Gravity and Tensions in Modern Cosmology},
author = {Vasilios Zarikas},
journal= {arXiv preprint arXiv:2410.11970},
year = {2024}
}