Renormalization group flow and symmetry restoration in de Sitter space
作者： J. Serreau
DOI: 10.1016/J.PHYSLETB.2014.01.058
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摘要: Abstract We compute the renormalization group flow of O ( N ) scalar field theories in de Sitter space using nonperturbative techniques local potential approximation. obtain effective on superhorizon scales for arbitrary space–time dimension D = d + 1 . show that, due to strong infrared fluctuations, latter is qualitatively similar corresponding one Euclidean R with 0 It follows that spontaneously broken symmetries are radiatively restored any and value
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