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Towards Axionic Starobinsky-like Inflation in String Theory

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arxiv 1503.01607 v2 pith:LZSLJENS submitted 2015-03-05 hep-th astro-ph.COhep-ph

Towards Axionic Starobinsky-like Inflation in String Theory

Ralph Blumenhagen , Anamaria Font , Michael Fuchs , Daniela Herschmann , Erik Plauschinn This is my paper
classification hep-th astro-ph.COhep-ph
keywords starobinsky-liketheoryinflationpotentialstringapproximationaxionaxion-monodromy
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It is shown that Starobinsky-like potentials can be realized in non-geometric flux compactifications of string theory, where the inflaton involves an axion whose shift symmetry can protect UV-corrections to the scalar potential. For that purpose we evaluate the backreacted, uplifted F-term axion-monodromy potential, which interpolates between a quadratic and a Starobinsky-like form. Limitations due to the requirements of having a controlled approximation of the UV theory and of realizing single-field inflation are discussed.

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  1. On Legacy of Starobinsky Inflation

    gr-qc 2025-01 unverdicted novelty 2.0

    A memorial review of the Starobinsky inflation model that proposes a deformation for primordial black hole production and discusses superstring quantum corrections plus universal reheating.