A Meandering Inflaton

Details A Meandering Inflaton A Meandering Inflaton

2009-10-05

arxiv.org/abs/0910.0849v2

Phys.Lett.B683:326-330,2010

Physics

High Energy Physics

High Energy Physics - Theory

minor additions, matched to published version

Scientific paper

10.1016/j.physletb.2009.12.045

If the cosmological inflationary scenario took place in the cosmic landscape in string theory, the inflaton, the scalar mode responsible for inflation, would have meandered in a complicated multi-dimensional potential. We show that this meandering property naturally leads to many e-folds of inflation, a necessary condition for a successful inflationary scenario. This behavior also leads to fluctuations in the primordial power spectrum of the cosmic microwave background radiation, which may be detected in a near future cosmic variance limited experiment like PLANCK.

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