Large Field Inflation in Supergravity

Details Large Field Inflation in Supergravity Large Field Inflation in Supergravity

1998-02-06

arxiv.org/abs/hep-ph/9802263v2

Phys.Rev. D59 (1999) 063502

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, Revtex, 6 ps figures. New title, partially rewritten and extended. To be published in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.59.063502

We present a supergravity inflationary scenario in which the inflaton field takes values considerably larger than the Planck scale. It is based on a class of inflationary potentials which can be derived from ``singular'' Kaehler potentials assuming simple superpotentials of the type $W\simS^n$. To this class belong, among many others, all potentials which are even infinitesimally smaller than the one derived from the minimal Kaehler potential. Our scenario allows for a detectable gravitational wave contribution to the microwave background anisotropy.

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