Generation of Magnetic Fields in Cosmology
arXiv:hep-ph/0110293 · doi:10.1142/9789812777478_0008
Abstract
Mechanisms of generation of magnetic fields in the early universe which could seed the present-day large scale galactic magnetic fields, are briefly reviewed. Three possible ways to create large scale magnetic fields are discussed: breaking of conformal invariance of electromagnetic interactions and inflationary stretching of the field wave length, first order cosmological phase transitions, and chaotic electric currents generated by turbulent flows in the primeval plasma.
8 pages; to be published in Collection of papers dedicated to 70th anniversary of S.G. Matinyan a few references and discussion added