Scale-invariant helical magnetic fields from inflation

Tomohiro Fujita; Ruth Durrer

doi:10.1088/1475-7516/2019/09/008

Scale-invariant helical magnetic fields from inflation

Tomohiro Fujita, Ruth Durrer

研究成果: Article › 査読

25 被引用数 (Scopus)

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
論文番号	008
ジャーナル	Journal of Cosmology and Astroparticle Physics
巻	2019
号	9
DOI	https://doi.org/10.1088/1475-7516/2019/09/008
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

文献へのアクセス

10.1088/1475-7516/2019/09/008

他のファイルとリンク

引用スタイル

@article{35f12a0b3556401d91a8fe0ad5f0e67b,

title = "Scale-invariant helical magnetic fields from inflation",

abstract = "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.",

keywords = "extragalactic magnetic fields, ination, primordial magnetic fields",

author = "Tomohiro Fujita and Ruth Durrer",

note = "Publisher Copyright: {\textcopyright} 2019 IOP Publishing Ltd and Sissa Medialab.",

year = "2019",

month = sep,

day = "3",

doi = "10.1088/1475-7516/2019/09/008",

language = "English",

volume = "2019",

journal = "Journal of Cosmology and Astroparticle Physics",

issn = "1475-7516",

publisher = "IOP Publishing Ltd.",

number = "9",

}

TY - JOUR

T1 - Scale-invariant helical magnetic fields from inflation

AU - Fujita, Tomohiro

AU - Durrer, Ruth

PY - 2019/9/3

Y1 - 2019/9/3

N2 - 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.

AB - 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.

KW - extragalactic magnetic fields

KW - ination

KW - primordial magnetic fields

UR - http://www.scopus.com/inward/record.url?scp=85076094405&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85076094405&partnerID=8YFLogxK

U2 - 10.1088/1475-7516/2019/09/008

DO - 10.1088/1475-7516/2019/09/008

M3 - Article

AN - SCOPUS:85076094405

VL - 2019

JO - Journal of Cosmology and Astroparticle Physics

JF - Journal of Cosmology and Astroparticle Physics

SN - 1475-7516

IS - 9

M1 - 008

ER -

Scale-invariant helical magnetic fields from inflation

抄録

ASJC Scopus subject areas

文献へのアクセス

他のファイルとリンク

フィンガープリント

引用スタイル