Magnetic Fields from the Electroweak Phase Transition

Abstract

I review some of the mechanisms through which primordial magnetic fields may be created in the electroweak phase transition. I show that no magnetic fields are produced initially from two-bubble collisions in a first-order transition. The initial field produced in a three-bubble collision is computed. The evolution of fields at later times is discussed.

Comments: Talk presented at the International Workshop on Particle Physics and the Early Universe (COSMO--97) in Ambleside, England, 15-19 Sept 1997. To appear in the proceedings (World Scientific). LaTeX, 5 pages