抄録
We discuss a model which can generate scale-invariant helical magnetic fields on large scales (≤ 1Mpc) in the primordial universe. It is also shown that the electric conductivity becomes significant and terminates magnetogenesis even before reheating is completed. By solving the electromagnetic dynamics taking conductivity into account, we find that magnetic fields with amplitude B∼ 10-15G at present can be generated without encountering a backreaction or strong coupling problem.
本文言語 | English |
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論文番号 | 008 |
ジャーナル | Journal of Cosmology and Astroparticle Physics |
巻 | 2019 |
号 | 9 |
DOI | |
出版ステータス | Published - 2019 9月 3 |
外部発表 | はい |
ASJC Scopus subject areas
- 天文学と天体物理学