Chaotic Inflation in Supergravity after Planck and BICEP2

Abstract

We discuss the general structure and observational consequences of some of the simplest versions of chaotic inflation in supergravity in relation to the data by Planck 2013 and BICEP2. We show that minimal modifications to the simplest quadratic potential are sufficient to provide a controllable tensor mode signal and a suppression of CMB power at large angular scales.

13 pages, 6 figures, minor references changes

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Cited by in corpus (28)

• Cosmology with Nilpotent Superfields
• The Powers of Monodromy
• Vacuum Energy Sequestering: The Framework and Its Cosmological Consequences
• Inflationary $\alpha$-attractors from $F(R)$ Gravity
• Wiggly Whipped Inflation
• Inflation from Broken Scale Invariance
• ${\varphi }^2$ or Not ${\varphi }^2$: Testing the Simplest Inflationary Potential
• Inflationary Attractors in $F(R)$ Gravity
• Axion monodromy inflation with multi-natural modulations
• Three-form multiplet and Inflation
• Inflation via Gravitino Condensation in Dynamically Broken Supergravity
• Random Potentials and Cosmological Attractors
• Sneutrino Inflation with $\alpha$-attractors
• Disentangling the $f(R)$ - Duality
• Gravity Waves From Non-Minimal Quadratic Inflation
• Power law Starobinsky model of inflation from no-scale SUGRA
• Exponential potential for an inflaton with nonminimal kinetic coupling and its supergravity embedding
• Constraint on the primordial gravitational waves from the joint analysis of BICEP2 and Planck HFI 353 GHz dust polarization data
• From Hybrid to Quadratic Inflation With High-Scale Supersymmetry Breaking
• Large tensor-to-scalar ratio and running of the scalar spectral index with Instep Inflation
• Large Scale Suppression of Scalar Power on a Spatial Condensation
• Illustrating SUSY breaking effects on various inflation mechanisms
• Higher Curvature Supergravity, Supersymmetry Breaking and Inflation
• Naturally large tensor-to-scalar ratio in inflation
• Re-evaluation of ${\Omega }_k$ of the normalised Friedmann-Lema\^ıtre-Robertson-Walker model: Implications for Hubble constant determinations
• Inflationary $\alpha -$attractors and $F(R)$ gravity
• Non-thermal leptogenesis with distinct CP violation and minimal dark matter
• Large Field Polynomial Inflation in Palatini $f(R,\varphi )$ Gravity