N=2 Supersymmetry and de Sitter space
Abstract
We present a (unique?) possibility of de Sitter solution in the framework of N=2 supersymmetry (hypersymmetry). We show that a model with a vector and a charged hypermultiplet has a hybrid inflation type potential. It leads to a slow-roll regime in de Sitter type background with all supersymmetries broken spontaneously. Beyond the bifurcation point the waterfall stage abruptly brings the system into a ground state with 2 unbroken supersymmetries. De Sitter stage exists under condition that the superconformal SU(2,2|2) symmetry of the model is softly broken down to N=2 supersymmetry by the vev of the Killing prepotential triplet P^r. This hybrid hypersymmetry model may describe P-term inflation and/or acceleration of the universe at the present epoch.
Cite
@article{arxiv.hep-th/0109168,
title = {N=2 Supersymmetry and de Sitter space},
author = {Renata Kallosh},
journal= {arXiv preprint arXiv:hep-th/0109168},
year = {2007}
}
Comments
24 pages, 5 figs, LaTeX, Improved version