Warm inflation in the presence of magnetic fields

2014/07/31 by Gabriella Piccinelli, Angel Sanchez, Alejandro Ayala +1 · 1 citation
Physics and Astronomy · #hep-ph #astro-ph.CO

paper · pdf · doi:10.1103/physrevd.90.083504

published as Phys. Rev. D 90, 083504 (2014) · 13 pages, 10 figures. References added and discussion expanded. Version to be published in PRD

arxiv created 2014/09/08 · arxiv updated 2014/10/08

Abstract

We study the effects of primordial magnetic fields on the inflationary potential in the context of a warm inflation scenario. The model, based on global supersymmetry with a new-inflation-type potential and a coupling between the inflaton and a heavy intermediate superfield, is already known to preserve the flatness required for slow-roll conditions even after including thermal contributions. Here we show that the magnetic field makes the potential even flatter, retarding the transition and rendering it smoother.

Cited by

• The Impact of Inhomogeneous Perturbations of the Inflaton on the Cosmological Primordial Magnetic Field

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