Observational consequences of chaotic inflation with nonminimal coupling to gravity

Details Observational consequences of chaotic inflation with nonminimal coupling to gravity Observational consequences of chaotic inflation with nonminimal coupling to gravity

2011-01-13

arxiv.org/abs/1101.2652v3

JCAP 1103:013,2011

Physics

High Energy Physics

High Energy Physics - Theory

18 pages, 11 figures, version accepted at JCAP

Scientific paper

10.1088/1475-7516/2011/03/013

Recently there was an extensive discussion of Higgs inflation in the theory with the potential \lambda(\phi^2-v^2)^2 and nonminimal coupling to gravity {\xi\over 2}\phi^2R, for \xi >> 1 and v<< 1. We extend this investigation to the theories m^2\phi^2 and \lambda(\phi^2-v^2)^2 with arbitrary values of \xi and v and describe implementation of these models in supergravity. We analyze observational consequences of these models and find a surprising coincidence of the inflationary predictions of the model \lambda(\phi^2-v^2)^2 with \xi <0 in the limit |\xi|v^2 \to 1 with the predictions of the Higgs inflation scenario for \xi >> 1.

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