Magnetic field generation in Higgs inflation model

Abstract

We study the generation of magnetic field in Higgs-inflation models where the Standard Model Higgs boson has a large coupling to the Ricci scalar. We couple the Higgs field to the Electromagnetic fields via a non- renormalizable dimension six operator suppressed by the Planck scale in the Jordan frame. We show that during Higgs inflation magnetic fields with present value $10^{-6}$ Gauss and comoving coherence length of $100kpc$ can be generated in the Einstein frame. The problem of large back-reaction which is generic in the usual inflation models of magneto-genesis is avoided as the back-reaction is suppressed by the large Higgs-curvature coupling.

10 pages, RevTeX 4

References in corpus (7)

• The Standard Model Higgs boson as the inflaton
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• Strong magnetic fields in normal galaxies at high redshifts
• Unitarizing Higgs Inflation
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Cited by in corpus (3)

• The evolution of primordial magnetic field since its generation
• Statistical Properties of Scale-Invariant Helical Magnetic Fields and Applications to Cosmology
• Primordial Magnetogenesis in a Bouncing Universe