A no-go theorem for monodromy inflation

Abstract

We study the embedding of the monodromy inflation mechanism by E. Silverstein and A. Westphal (2008) in a concrete compactification setting. To that end, we look for an appropriate vacuum of type IIA supergravity, corresponding to the minimum of the inflaton potential. We prove a no-go theorem on the existence of such a vacuum, using ten-dimensional equations of motion. Anti-de Sitter and Minkowski vacua are ruled out; de Sitter vacua are not excluded, but have a lower bound on their cosmological constant which is too high for phenomenology.

v2: minor additions, published version

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Cited by in corpus (10)

• Backreacted Axion Field Ranges in String Theory
• Backreaction Issues in Axion Monodromy and Minkowski 4-forms
• Axion Monodromy and the Weak Gravity Conjecture
• Can Gravitational Instantons Really Constrain Axion Inflation?
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• Axion decay constants away from the lamppost
• Towards Kaluza-Klein Dark Matter on Nilmanifolds
• Observable Quantum Loop Effects in the Sky