From Renormalization Group Flows to Cosmology

From Renormalization Group Flows to Cosmology

According to the asymptotic-safety conjecture, the gravitational renormalization group flow features an ultraviolet-attractive fixed point that makes the theory renormalizable and ultraviolet complete. The existence of this fixed point entails an antiscreening of the gravitational interaction at sho...

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Main Author: Alessia Platania
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-05-01
Series:Frontiers in Physics
Subjects:
cosmology–theory
quantum gravitation
renormalization group
singularity
inflation
Online Access:https://www.frontiersin.org/article/10.3389/fphy.2020.00188/full
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spelling doaj-38927a7fa1e244b08e16dea24988da7f2020-11-25T02:25:18ZengFrontiers Media S.A.Frontiers in Physics2296-424X2020-05-01810.3389/fphy.2020.00188542348From Renormalization Group Flows to CosmologyAlessia PlataniaAccording to the asymptotic-safety conjecture, the gravitational renormalization group flow features an ultraviolet-attractive fixed point that makes the theory renormalizable and ultraviolet complete. The existence of this fixed point entails an antiscreening of the gravitational interaction at short distances. In this paper we review the state-of-the-art of phenomenology of Asymptotically Safe Gravity, focusing on the implications of the gravitational antiscreening in cosmology.https://www.frontiersin.org/article/10.3389/fphy.2020.00188/fullcosmology–theoryquantum gravitationrenormalization groupsingularityinflation
collection DOAJ
language English
format Article
sources DOAJ
author Alessia Platania
spellingShingle Alessia Platania
From Renormalization Group Flows to Cosmology
Frontiers in Physics
cosmology–theory
quantum gravitation
renormalization group
singularity
inflation
author_facet Alessia Platania
author_sort Alessia Platania
title From Renormalization Group Flows to Cosmology
title_short From Renormalization Group Flows to Cosmology
title_full From Renormalization Group Flows to Cosmology
title_fullStr From Renormalization Group Flows to Cosmology
title_full_unstemmed From Renormalization Group Flows to Cosmology
title_sort from renormalization group flows to cosmology
publisher Frontiers Media S.A.
series Frontiers in Physics
issn 2296-424X
publishDate 2020-05-01
description According to the asymptotic-safety conjecture, the gravitational renormalization group flow features an ultraviolet-attractive fixed point that makes the theory renormalizable and ultraviolet complete. The existence of this fixed point entails an antiscreening of the gravitational interaction at short distances. In this paper we review the state-of-the-art of phenomenology of Asymptotically Safe Gravity, focusing on the implications of the gravitational antiscreening in cosmology.
topic cosmology–theory
quantum gravitation
renormalization group
singularity
inflation
url https://www.frontiersin.org/article/10.3389/fphy.2020.00188/full
work_keys_str_mv AT alessiaplatania fromrenormalizationgroupflowstocosmology
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