We consider the presence of cosmic string induced density fluctuations in the universe at
temperatures below the electroweak phase transition temperature. Resulting temperature
fluctuations can restore the electroweak symmetry locally, depending on the amplitude of
fluctuations and the background temperature. The symmetry will be spontaneously broken
again in a given fluctuation region as the temperature drops there (for fluctuations with
length scales smaller than the horizon), resulting in the production of baryon asymmetry. The …

We consider the presence of cosmic string-induced density fluctuations in the early universe
at temperatures below the electroweak phase transition temperature. Resulting temperature
fluctuations can restore the electroweak symmetry locally, depending on the amplitude of
fluctuations and the background temperature. The symmetry will be spontaneously broken
again in a given region as the temperature drops there (for fluctuations with length scales
smaller than the horizon), resulting in the production of baryon asymmetry. The time-scale of …