[Inflation et production d'un champ magnétique cosmologique pendant l'inflation]
L'observation récente de photons ultra-énergétiques en provenance des blazars suggère l'existence de champs magnétiques cosmologiques, d'amplitude typique , omniprésents, y compris au sein des vides cosmiques. Il est dès lors naturel de les associer à la physique inflationnaire dans l'univers primordial. Nous donnons une liste de modèles de génération d'un champ magnétique pendant l'inflation et discutons un certain nombre de problèmes qu'ils posent.
Recent observations of high-energy photons from blazars suggest that there exist magnetic fields with typical amplitude around ubiquitously even in void regions. This being the case, it is natural to invoke them to explain the processes occurring during inflation in the early universe. We provide a list of models of magnetogenesis during inflation and consider several problems associated with them.
Mot clés : Cosmologie, Inflation, Champ magnétique, Effet Schwinger
@article{CRPHYS_2015__16_10_1018_0,
author = {Jun'ichi Yokoyama},
title = {Issues on the inflationary magnetogenesis},
journal = {Comptes Rendus. Physique},
pages = {1018--1026},
publisher = {Elsevier},
volume = {16},
number = {10},
year = {2015},
doi = {10.1016/j.crhy.2015.08.008},
language = {en},
}
Jun'ichi Yokoyama. Issues on the inflationary magnetogenesis. Comptes Rendus. Physique, Volume 16 (2015) no. 10, pp. 1018-1026. doi : 10.1016/j.crhy.2015.08.008. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2015.08.008/
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