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024 7 _ |a 10.1007/JHEP04(2015)058
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024 7 _ |a 1126-6708
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024 7 _ |a arXiv:1501.05812
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088 1 _ |a arXiv:1501.05812
088 _ _ |a arXiv:1501.05812
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100 1 _ |a Buchmuller, Wilfried
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245 _ _ |a Challenges for large-field inflation and moduli stabilization
260 _ _ |a Berlin
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520 _ _ |a We analyze the interplay between Kähler moduli stabilization and chaotic inflation in supergravity. While heavy moduli decouple from inflation in the supersymmetric limit, supersymmetry breaking generically introduces non-decoupling effects. These lead to inflation driven by a soft mass term, m φ 2  ∼ mm 3/2, where m is a supersymmetric mass parameter. This scenario needs no stabilizer field, but the stability of moduli during inflation imposes a large supersymmetry breaking scale, m 3/2 ≫ H, and a careful choice of initial conditions. This is illustrated in three prominent examples of moduli stabilization: KKLT stabilization, Kähler Uplifting, and the Large Volume Scenario. Remarkably, all models have a universal effective inflaton potential which is flattened compared to quadratic inflation. Hence, they share universal predictions for the CMB observables, in particular a lower bound on the tensor-to-scalar ratio, r ≳ 0.05.
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700 1 _ |a Dudas, Emilian
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700 1 _ |a Heurtier, Lucien
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700 1 _ |a Westphal, Alexander
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700 1 _ |a Wieck, Clemens
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700 1 _ |a Winkler, Martin Wolfgang
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773 _ _ |a 10.1007/JHEP04(2015)058
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787 0 _ |a Buchmuller, Wilfried et.al.
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|t Challenges for Large-Field Inflation and Moduli Stabilization
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