Bianchi-I cosmology in quantum gravity
General Relativity and Quantum Cosmology
2022-08-11 v1 High Energy Physics - Theory
Abstract
The exact renormalization group flow equations for gravity lead to quantum corrections of Newton's constant and cosmological constant. Using this we investigate the Bianchi-I cosmological model at late times. In particular, we obtain the scale factors in different directions, and observe that they eventually evolve into Friedmann-Lema\^itre-Robertson-Walker (FLRW) universe for radiation. However, for stiff matter the universe shows a Kasner like behaviour. The presentation is based on our work published in \cite{Mandal:2019xlg}.
Cite
@article{arxiv.2208.04949,
title = {Bianchi-I cosmology in quantum gravity},
author = {Sunandan Gangopadhyay and Rituparna Mandal and Amitabha Lahiri},
journal= {arXiv preprint arXiv:2208.04949},
year = {2022}
}
Comments
4 pages, Contribution to the proceedings of XXIV DAE-BRNS High Energy Physics Symposium 2020