General Analysis of Inflation in the Jordan frame Supergravity

Details General Analysis of Inflation in the Jordan frame Supergravity General Analysis of Inflation in the Jordan frame Supergravity

2010-09-17

arxiv.org/abs/1009.3399v2

JCAP 1011:039,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 1 figure

Scientific paper

10.1088/1475-7516/2010/11/039

We study various inflation models in the Jordan frame supergravity with a logarithmic Kahler potential. We find that, in a class of inflation models containing an additional singlet in the superpotential, three types of inflation can be realized: the Higgs-type inflation, power-law inflation, and chaotic inflation with/without a running kinetic term. The former two are possible if the holomorphic function dominates over the non-holomorphic one in the frame function, while the chaotic inflation occurs when both are comparable. Interestingly, the fractional-power potential can be realized by the running kinetic term. We also discuss the implication for the Higgs inflation in supergravity.

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