Resonant magnetic fields from inflation

Byrnes C, Hollenstein L, Jain RK, Urban FR (2012)
Journal of Cosmology and Astroparticle Physics 2012(03): 009.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
Download
Es wurden keine Dateien hochgeladen. Nur Publikationsnachweis!
Autor*in
Byrnes, ChristianUniBi; Hollenstein, Lukas; Jain, Rajeev Kumar; Urban, Federico R.
Abstract / Bemerkung
We propose a novel scenario to generate primordial magnetic fields duringinflation induced by an oscillating coupling of the electromagnetic field tothe inflaton. This resonant mechanism has two key advantages over previousproposals. First of all, it generates a narrow band of magnetic fields at anyrequired wavelength, thereby allaying the usual problem of a strongly bluespectrum and its associated backreaction. Secondly, it avoids the need for astrong coupling as the coupling is oscillating rather than growing or decayingexponentially. Despite these major advantages, we find that the backreaction isstill far too large during inflation if the generated magnetic fields arerequired to have a strength of ${\cal O}(10^{-15}\, \Gauss)$ today onobservationally interesting scales. We provide a more general no-go argument,proving that this problem will apply to any model in which the magnetic fieldsare generated on subhorizon scales and freeze after horizon crossing.
Erscheinungsjahr
2012
Zeitschriftentitel
Journal of Cosmology and Astroparticle Physics
Band
2012
Ausgabe
03
Seite(n)
009
ISSN
1475-7516
eISSN
1475-7516
Page URI
https://pub.uni-bielefeld.de/record/2455049

Zitieren

Byrnes C, Hollenstein L, Jain RK, Urban FR. Resonant magnetic fields from inflation. Journal of Cosmology and Astroparticle Physics. 2012;2012(03):009.
Byrnes, C., Hollenstein, L., Jain, R. K., & Urban, F. R. (2012). Resonant magnetic fields from inflation. Journal of Cosmology and Astroparticle Physics, 2012(03), 009. doi:10.1088/1475-7516/2012/03/009
Byrnes, Christian, Hollenstein, Lukas, Jain, Rajeev Kumar, and Urban, Federico R. 2012. “Resonant magnetic fields from inflation”. Journal of Cosmology and Astroparticle Physics 2012 (03): 009.
Byrnes, C., Hollenstein, L., Jain, R. K., and Urban, F. R. (2012). Resonant magnetic fields from inflation. Journal of Cosmology and Astroparticle Physics 2012, 009.
Byrnes, C., et al., 2012. Resonant magnetic fields from inflation. Journal of Cosmology and Astroparticle Physics, 2012(03), p 009.
C. Byrnes, et al., “Resonant magnetic fields from inflation”, Journal of Cosmology and Astroparticle Physics, vol. 2012, 2012, pp. 009.
Byrnes, C., Hollenstein, L., Jain, R.K., Urban, F.R.: Resonant magnetic fields from inflation. Journal of Cosmology and Astroparticle Physics. 2012, 009 (2012).
Byrnes, Christian, Hollenstein, Lukas, Jain, Rajeev Kumar, and Urban, Federico R. “Resonant magnetic fields from inflation”. Journal of Cosmology and Astroparticle Physics 2012.03 (2012): 009.
Export

Markieren/ Markierung löschen
Markierte Publikationen

Open Data PUB

Web of Science

Dieser Datensatz im Web of Science®
Quellen

arXiv: 1111.2030

Inspire: 945059

Suchen in

Google Scholar