Inflation in Supergravity with a Single Chiral Superfield
Abstract
We propose new supergravity models describing chaotic Linde- and Starobinsky-like inflation in terms of a single chiral superfield. The key ideas to obtain a positive vacuum energy during large field inflation are (i) stabilization of the real or imaginary partner of the inflaton by modifying a Kahler potential, and (ii) use of the crossing terms in the scalar potential originating from a polynomial superpotential. Our inflationary models are constructed by starting from the minimal Kahler potential with a shift symmetry, and are extended to the no-scale case. Our methods can be applied to more general inflationary models in supergravity with only one chiral superfield.
Cite
@article{arxiv.1406.0252,
title = {Inflation in Supergravity with a Single Chiral Superfield},
author = {Sergei V. Ketov and Takahiro Terada},
journal= {arXiv preprint arXiv:1406.0252},
year = {2014}
}
Comments
12 pages, 2 figures, published version; See http://neko2.net/ssi/ for a short movie of this work