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Vortex topology and the continuum limit of lattice gauge theories

Presenter: Giuseppe Burgio — Institut f. Theor. Physik, Tübingen

Giuseppe Burgio

We study the stability of ℤ2 topological vortex excitations in d+1 dimensional SU(2) Yang-Mills theory on the lattice at T=0. This is found to depend on d and on the coupling considered. We discuss the connection with lattice artifacts causing bulk transitions in the βAF plane and draw some conclusions regarding the continuum limit of the theory.