Inflation in supergravity with a single chiral superfield

DOI10.1016/J.PHYSLETB.2014.07.036zbMATH Open1317.83094arXiv1406.0252OpenAlexW2146224415MaRDI QIDQ2356376

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Publication date: 29 July 2015

Published in: (Search for Journal in Brave)

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.

Full work available at URL: https://arxiv.org/abs/1406.0252

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