Aligned Natural Inflation in String Theory
arXiv:1404.7852 · doi:10.1103/PhysRevD.90.023501
Abstract
We propose a scenario for realizing super-Planckian axion decay constants in Calabi-Yau orientifolds of type IIB string theory, leading to large-field inflation. Our construction is a simple embedding in string theory of the mechanism of Kim, Nilles, and Peloso, in which a large effective decay constant arises from alignment of two smaller decay constants. The key ingredient is gaugino condensation on magnetized or multiply-wound D7-branes. We argue that, under very mild assumptions about the topology of the Calabi-Yau, there are controllable points in moduli space with large effective decay constants.
10 pages, two-column format, 3 figures. References added
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Cited by in corpus (20)
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