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A no-go theorem for monodromy inflation

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Andriot,  David
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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1510.02005.pdf
(Preprint), 390KB

jcap032016025.pdf
(Publisher version), 372KB

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Citation

Andriot, D. (2016). A no-go theorem for monodromy inflation. Journal of Cosmology and Astroparticles Physics, 3: 025. doi:10.1088/1475-7516/2016/03/025.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0028-9C7F-B
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.