Slow-roll inflation without fine-tuning

Details Slow-roll inflation without fine-tuning Slow-roll inflation without fine-tuning

1999-11-24

arxiv.org/abs/gr-qc/9911093v1

Phys.Lett. B472 (2000) 21-26

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, 4 figures,RevTex style, to be published in Phys. Lett. B

Scientific paper

10.1016/S0370-2693(99)01362-3

The slow-roll approximation is the usual starting point to study the constraints imposed on the inflaton potential parameters by the observational data. We show that, for a potential exhibiting at least two extrema and giving rise to a limited inflationary period, slow-roll does not have to be taken as an additional hypothesis and is in fact forced by the constraints on the number of e-foldings.

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