A No-Scale Inflationary Model to Fit Them All

Abstract

The magnitude of B-mode polarization in the cosmic microwave background as measured by BICEP2 favours models of chaotic inflation with a quadratic $m^2{\varphi }^2/2$ potential, whereas data from the Planck satellite favour a small value of the tensor-to-scalar perturbation ratio $r$ that is highly consistent with the Starobinsky $R+R^2$ model. Reality may lie somewhere between these two scenarios. In this paper we propose a minimal two-field no-scale supergravity model that interpolates between quadratic and Starobinsky-like inflation as limiting cases, while retaining the successful prediction $n_s\simeq 0.96$.

25 pages, 12 figures

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Cited by in corpus (24)

• Cosmology with Nilpotent Superfields
• Inflation and High-Scale Supersymmetry with an EeV Gravitino
• Inflation from Broken Scale Invariance
• Two-Field Analysis of No-Scale Supergravity Inflation
• Keeping the relation between the Starobinsky model and no-scale supergravity ACTive
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• Asymmetric dark matter in braneworld cosmology
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• Higher Curvature Supergravity, Supersymmetry Breaking and Inflation
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• ${\mathcal{R}}^2$ Supergravity
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• Impact of Dark Sector Preheating on CMB Observables
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• Rapid-turn inflation in supergravity is rare and tachyonic