出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Using lattice techniques we investigate the generation of long range cosmologicalmagnetic fields
during a cold electroweak transition. We will show how magnetic fields arise, during bubble
collisions, in the form of magnetic strings. We conjecture that these magnetic strings originate
from the alignment of magnetic dipoles associated with EW sphaleron-like configurations. We
also discuss the early thermalisation of photons and the turbulent behaviour of the scalar fields
after tachyonic preheating.
