Moduli inflation in five-dimensional supergravity models

Abstract

We propose a simple but effective mechanism to realize an inflationary early universe consistent with the observed WMAP, Planck and/or BICEP2 data, which would be incorporated in various supersymmetric models of elementary particles constructed in the (effective) five-dimensional spacetime. In our scenario, the inflaton field is identified with one of the moduli appearing when the fifth direction is compactified, and a successful cosmological inflation without the so-called eta problem can be achieved by a very simple moduli stabilization potential. We also discuss the related particle cosmology during and (just) after the inflation, such as the (no) cosmological moduli problem.

33 pages, 14 figures, References added

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Cited by in corpus (6)

• Natural inflation with and without modulations in type IIB string theory
• Towards natural inflation from weakly coupled heterotic string theory
• Axion Inflation and Affleck-Dine Baryogenesis
• $\alpha$-attractor-type Double Inflation
• Moduli rolling to a natural MSSM with gravitino dark matter
• Particle physics and cosmology with high-scale SUSY breaking in five-dimensional supergravity models