Inflation in large N limit of supersymmetric gauge theories

Jokinen, Asko and Mazumdar, Anupam (2004) Inflation in large N limit of supersymmetric gauge theories. Physics Letters B, 597 (2). pp. 222-228. ISSN 0370-2693

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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.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Additional Information:
10 pages, LaTeX2e, misprints corrected, version accepted for publishing
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Deposited On:
01 May 2013 13:33
Last Modified:
21 Nov 2022 23:33