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VOLUME 67 (1998) | ISSUE 8 | PAGE 526
Vortex dynamics in classical non-abelian spin models
PACS: 05.30.-d, 11.15.Ha, 75.10.-b
We discuss the abelian vortex dynamics in the abelian projection approach to non-abelian spin models. We show numerically that in the three-dimensional SU(2) spin model in the Maximal Abelian projection the abelian ofT-diagonal vortices are not responsible for the phase transition contrary to the diagonal vortices. A generalization of the abelian projection approach to SU(N) spin models is briefly discussed.