Renormalization group flow and symmetry restoration in de Sitter space
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Publication:1700223
DOI10.1016/J.PHYSLETB.2014.01.058zbMATH Open1381.81089arXiv1306.3846OpenAlexW1995934312WikidataQ113100180 ScholiaQ113100180MaRDI QIDQ1700223
Author name not available (Why is that?)
Publication date: 5 March 2018
Published in: (Search for Journal in Brave)
Abstract: We compute the renormalization group flow of O(N) scalar field theories in de Sitter space using nonperturbative renormalization group techniques in the local potential approximation. We obtain the flow of the effective potential on superhorizon scales for arbitrary space-time dimension D=d+1. We show that, due to strong infrared fluctuations, the latter is qualitatively similar to the corresponding one in Euclidean space with D=0. It follows that spontaneously broken symmetries are radiatively restored in any space-time dimension and for any value of N.
Full work available at URL: https://arxiv.org/abs/1306.3846
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