Non-minimal two-loop inflation

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DOI Доступ к ресурсу на сайте издателя				10.1016/j.physletb.2015.04.038

Title: Non-minimal two-loop inflation
Creator: Inagaki, Tomohiro
Creator: Nakanishi, Ryota
Creator: Odintsov, Sergey Dmitrievich
Contributor: Томский государственный университет Физический факультет Научные подразделения ФФ
Subject: эффективные потенциалы двухпетлевые
скалярные поля
Date: 2015
DOI: 10.1016/j.physletb.2015.04.038
Description: We investigate the chaotic inflationary model using the two-loop effective potential of a self-interacting scalar field theory in curved spacetime. We use the potential which contains a non-minimal scalar curvature coupling and a quartic scalar self-interaction and which was found in Ref.[1]. We analyze the Lyapunov stability of de Sitter solution and show the stability bound. Calculating the inflationary parameters, we systematically explore the spectral index nsand the tensor-to-scalar ratio r, with varying the four parameters, the scalar-curvature coupling ξ0, the scalar quartic coupling λ0, the renormalization scale μand the e-folding number N. It is found that the two-loop correction on nsis much larger than the leading-log correction, which has previously been studied in Ref.[2]. We show that the model is consistent with the observation by Planck with WMAP [3,4]and a recent joint analysis of BICEP2 [5].

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collection(s): Физический факультет
Identifier: vtls:000527350
http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000527350
Type: статьи в журналах
Source: Physics Letters B. 2015. Vol. 745. P. 105-111
Language: eng

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Физический факультет Non-minimal two-loop inflation