paper

The Stability of Primordial Magnetic Fields Produced by Phase Transitions

arXiv:astro-ph/9507057 · doi:10.1016/0370-2693(95)01120-F

Abstract

Primordial magnetic fields seem to be a generic relic of phase transitions in the early universe. We consider a primordial electromagnetic field formed as a result of a second-order phase transition, and show that it is stable to thermal fluctuations in the period immediately following. We also show how such a field arises in first order phase transitions. In both cases there is a transitive electric field produced during the transition.

12 pages