Evolution of inflation-generated magnetic field through phase transitions
2012 (English)In: Physical Review D, ISSN 1550-7998, Vol. 86, no 10, 103005- p.Article in journal (Refereed) Published
We study the evolution of an inflation-generated magnetic field, due to its coupling to fluid motions, during cosmological phase transitions. We find that the magnetic field stays almost unchanged on large scales, while on small scales, the spectrum is modified in such a way that power at small scales becomes progressively suppressed. We also show that the magnetic field generates turbulent motions in the initially turbulence-free plasma. On large scales, the slope of the resulting kinetic energy spectrum is consistent with that of white noise.
Place, publisher, year, edition, pages
2012. Vol. 86, no 10, 103005- p.
Tev Blazars, Hydromagnetic Turbulence, String Cosmology, Early Universe, 1es 0229+200, Anisotropy, Radiation, Helicity, Scalar, Light
IdentifiersURN: urn:nbn:se:kth:diva-109193DOI: 10.1103/PhysRevD.86.103005ISI: 000310845800003ScopusID: 2-s2.0-84869070294OAI: oai:DiVA.org:kth-109193DiVA: diva2:582844
FunderSwedish Research Council, 621-2007-4064EU, European Research Council, 227952
QC 201301072013-01-072012-12-212013-08-28Bibliographically approved