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arXiv · 2208.04949

Bianchi-I cosmology in quantum gravity

Sunandan Gangopadhyay·Rituparna Mandal·Amitabha Lahiri
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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}.

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Sunandan Gangopadhyay, Rituparna Mandal, Amitabha Lahiri. 2022-08-09. Bianchi-I cosmology in quantum gravity. https://arxiv.org/abs/2208.04949

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