Electromagnetic Properties of the Early Universe

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dc.creatorTakahashi, Keitaro
dc.creatorIchiki, Kiyotomo
dc.creatorSugiyama, Naoshi
dc.date2007-10-25
dc.date2008-05-29
dc.date.accessioned2026-07-07T11:38:20Z
dc.date.available2026-07-07T11:38:20Z
dc.descriptionDetailed physical processes of magnetic field generation from density fluctuations in the pre-recombination era are studied. Solving Maxwell equations and the generalized Ohm's law, the evolutions of the net charge density, the electric current and the electromagnetic field are solved. Unlike most of previous works, we treat electrons and photons as separate components under the assumption of tight coupling. We find that generation of the magnetic field due to density fluctuations takes place only from the second order of both perturbation theory and the tight coupling approximation.
dc.description14 pages, no figure, version accepted in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/0710.4620
dc.identifierhttp://arxiv.org/abs/0710.4620
dc.identifierPhys.Rev.D77:124028,2008
dc.identifierdoi:10.1103/PhysRevD.77.124028
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199526
dc.subjectAstrophysics
dc.titleElectromagnetic Properties of the Early Universe
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