Is Non-minimal Inflation Eternal?

Details Is Non-minimal Inflation Eternal? Is Non-minimal Inflation Eternal?

2009-11-20

arxiv.org/abs/0911.3994v1

Nuclear Physics B 841 (2010) 178-187

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

9 pages, 2 figures

Scientific paper

10.1016/j.nuclphysb.2010.08.003

The possibility that the non-minimal coupling inflation could be eternal is investigated. We calculate the quantum fluctuation of the inflaton in a Hubble time and find that it has the same value as in the minimal case in the slow-roll limit. Armed with this result, we have studied some concrete non-minimal inflationary models including the chaotic inflation and the natural inflation while the inflaton is non-minimally coupled to the gravity and we find that these non-minimal inflations could be eternal in some parameter regions.

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