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Magnetic fields from inflation?
Stockholm University, Faculty of Science, Department of Physics.
2009 (English)In: Journal of Cosmology and Astroparticle Physics, ISSN 1475-7516, E-ISSN 1475-7516, no 8, 25- p.Article in journal (Refereed) Published
Abstract [en]

We consider the possibility of generation of the primordial magnetic field on inflation and show that the effect of the back reaction of this field can be very important. Assuming that the back reaction does not spoil inflation we find a rather strong restriction on the amplitude of the primordial field which could be generated on inflation. Namely, this amplitude recalculated to the present epoch cannot exceed 10(-32)G in Mpc scales. This field seems to be too small to be amplified to the observable values by a possible dynamo mechanism.

Place, publisher, year, edition, pages
2009. no 8, 25- p.
Keyword [en]
primordial magnetic fields, inflation, physics of the early universe
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-59948DOI: 10.1088/1475-7516/2009/08/025ISI: 000270036800025OAI: oai:DiVA.org:su-59948DiVA: diva2:432685
Note
authorCount :3Available from: 2011-08-05 Created: 2011-08-02 Last updated: 2017-12-08Bibliographically approved

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