出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We compare vacuum dynamics of abelian versus non abelian lattice gauge theories in presence
of external elds. We nd that the deconnement temperature of non abelian theories depends
on the strength of a constant abelian chromomagnetic eld end eventually goes to zero. On the
contrary such an effect is not shared by abelian theories. We argue on the relevance of this result
to understand the QCD vacuum.
