Natural Inflation and Low Energy Supersymmetry

Abstract

Natural (axionic) inflation provides a well-motivated and predictive scheme for the description of the early universe. It leads to sizeable primordial tensor modes and thus a high mass scale of the inflationary potential. Naively this seems to be at odds with low (TeV) scale supersymmetry, especially when embedded in superstring theory. We show that low scale supersymmetry is compatible with natural (high scale) inflation. The mechanism requires the presence of two axions that are provided through the moduli of string theory.

15 pages, 4 figures

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Cited by in corpus (4)

• Can Gravitational Instantons Really Constrain Axion Inflation?
• On the viability of m**2 phi**2 and natural inflation
• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme
• Natural Chain Inflation