Magnetogenesis in non-local models during inflation

The generation of magnetic fields during inflation in an electromagnetic model with a non-local form factor in Maxwell`s action is studied. The equations of motion for the electromagnetic field are derived and solved. It is found that the conformal symmetry breaking due to the non-local form factor...

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Bibliographic Details
Published in:arXiv.org 2023-10
Main Authors: Gorbar, E V, Gorkavenko, T V, Gorkavenko, V M, Teslyk, O M
Format: Article
Language:English
Subjects:
Broken symmetry
Electromagnetic fields
Equations of motion
Form factors
Magnetic fields
Online Access:Get full text
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Summary:The generation of magnetic fields during inflation in an electromagnetic model with a non-local form factor in Maxwell`s action is studied. The equations of motion for the electromagnetic field are derived and solved. It is found that the conformal symmetry breaking due to the non-local form factor does not lead to the generation of magnetic fields during inflation in the absence of interaction with the inflaton field. If such a coupling takes place, then the presence of the form factor inhibits the generation of primordial magnetic fields compared to the case where the non-local form factor is absent.
ISSN:2331-8422
DOI:10.48550/arxiv.2310.01241