ON THE POSSIBLE CREATION OF A BACKGROUND W-CONDENSATE IN THE ELECTROWEAK PHASE-TRANSITION

A weak primordial magnetic field of order approximately 10(-21) G (at a co-moving scale of approximately 100 kpc) at present seems to require quite large magnetic fields in the past, if there is no large scale amplification mechanism. We show that this means that a W- and Z-condensate can be formed at the electroweak phase transition, and that this background may survive until the QCD phase transition.