Inflation in large N limit of supersymmetric gauge theories

Preprint

13 July 2004

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-th/0406074

Abstract

Within supersymmetry we provide an example where the inflaton sector is derived from a gauge invariant polynomial of SU(N) or SO(N) gauge theory. Inflation in our model is driven by multi-flat directions, which assist accelerated expansion. We show that multi-flat directions can flatten the individual non-renormalizable potentials such that inflation can occur at sub-Planckian scales. We calculate the density perturbations and the spectral index, we find that the spectral index is closer to scale invariance for large N. In order to realize a successful cosmology we require large N of order, N~600.

Keywords

SUPERSYMMETRIC GAUGE THEORIES
FLAT DIRECTIONS
SPECTRAL INDEX
SUPERSYMMETRY
GAUGE THEORY
MULTI FLAT
INFLATION
FLATTEN

All Related Versions

Version 1, 2004-06-09, ArXiv
Version 2, 2004-07-13, ArXiv
Published version: Physics Letters B, 597 (2), 222.

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