Supersymmetry and Inflation
Abstract
Theories with elementary scalar degrees of freedom seem nowadays required for simple descriptions of the Standard Model and of the Early Universe. It is then natural to embed theories of inflation in supergravity, also in view of their possible ultraviolet completion in String Theory. After some general remarks on inflation in supergravity, we describe examples of minimal inflaton dynamics which are compatible with recent observations, including higher-curvature ones inspired by the Starobinsky model. We also discuss different scenarios for supersymmetry breaking during and after inflation, which include a revived role for non-linear realizations. In this spirit, we conclude with a discussion of the link, in four dimensions, between "brane supersymmetry breaking" and the super--Higgs effect in supergravity.
Cite
@article{arxiv.1509.01500,
title = {Supersymmetry and Inflation},
author = {S. Ferrara and A. Sagnotti},
journal= {arXiv preprint arXiv:1509.01500},
year = {2015}
}
Comments
27 pages, LaTeX. Based in part on the Plenary and Parallel Session talks given by S.F. at the "Fourteenth Marcel Grossmann Meeting - MG14," Rome, July 12-18 2015, on the talk given by S.F. at "The String Theory Universe," 21st European String Workshop, Leuven, September 7-11, 2015, and on the plenary talk given by A.S. at "Planck 2015," Ioannina, May 25-29 2015. Misprints fixed, references added