Perturbations and non-Gaussianities in three-form inflationary magnetogenesis

Abstract

We reconsider magnetogenesis in the context of three-form inflation, and its backreaction. In particular, we focus on first order perturbation theory during inflation and subsequent radiation era: we discuss the consistency of the perturbative approach, and elaborate on the possible non-Gaussian signatures of the model.

29 pages and 8 figures

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• Vector Inflation
• Lower limit on the strength and filling factor of extragalactic magnetic fields
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• Magnetic fields from inflation?
• Cosmology with inhomogeneous magnetic fields
• Large-scale magnetic fields in the inflationary universe
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Cited by in corpus (12)

• Gauge Fields and Inflation
• The anisotropic power spectrum and bispectrum in the f(phi) F^2 mechanism
• Signatures of anisotropic sources in the squeezed-limit bispectrum of the cosmic microwave background
• On the non-Gaussian correlation of the primordial curvature perturbation with vector fields
• Coupled three-form dark energy
• A scenario for inflationary magnetogenesis without strong coupling problem
• Polarization bispectrum for measuring primordial magnetic fields
• Reheating in 3-form inflation
• Three-form inflation and non-Gaussianity
• Disformal vectors and anisotropies on a warped brane
• Pseudoscalar N-flation and axial coupling revisited
• The anisotropy of a three- and a one-form