Racetrack inflation and assisted moduli stabilisation

Details Racetrack inflation and assisted moduli stabilisation Racetrack inflation and assisted moduli stabilisation

2005-03-23

arxiv.org/abs/hep-th/0503178v2

Nucl.Phys.B766:1-20,2007

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, 6 figures (Latex); Error in v.1 eliminated and improved example of modular inflation presented

Scientific paper

10.1016/j.nuclphysb.2006.06.041

We present a model of inflation based on a racetrack model without flux stabilization. The initial conditions are set automatically through topological inflation. This ensures that the dilaton is not swept to weak coupling through either thermal effects or fast roll. Including the effect of non-dilaton fields we find that moduli provide natural candidates for the inflaton. The resulting potential generates slow-roll inflation without the need to fine tune parameters. The energy scale of inflation must be near the GUT scale and the scalar density perturbation generated has a spectrum consistent with WMAP data.

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