2024-03-29T16:04:15Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00009528
2023-01-16T03:55:14Z
336:695:696
Electromagnetic properties of the early universe
Takahashi, Keitaro
Ichiki, Kiyotomo
Sugiyama, Naoshi
open access
American Physical Society, All rights reserved.
Detailed physical processes of magnetic field generation from density fluctuations in the prerecombination 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 the 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.
American Physical Society
2008-06
eng
journal article
VoR
http://hdl.handle.net/2237/11311
https://nagoya.repo.nii.ac.jp/records/9528
https://doi.org/10.1103/PhysRevD.77.124028
1550-7998
PHYSICAL REVIEW D
77
12
124028
124028
https://nagoya.repo.nii.ac.jp/record/9528/files/PhysRevD_77_124028.pdf
application/pdf
177.1 kB
2018-02-20