Cosmic Acceleration in Massive Half-Maximal Supergravity
High Energy Physics - Theory
2010-04-05 v1 Astrophysics
High Energy Physics - Phenomenology
Abstract
We consider massive half-maximal supergravity in (d+3) dimensions and compactify it on a symmetric three space. We find that the static configurations of Minkowski X S^3, obtained by balancing the positive scalar potential for the dilaton and the flux of a three-form through the three-sphere, are unstable. The resulting cosmological evolution breaks supersymmetry and leads to an accelerated expansion in d dimensions.
Cite
@article{arxiv.hep-th/0411208,
title = {Cosmic Acceleration in Massive Half-Maximal Supergravity},
author = {Philippe Brax and Carsten van de Bruck and Anne-Christine Davis},
journal= {arXiv preprint arXiv:hep-th/0411208},
year = {2010}
}
Comments
11 pages, 3 figures