Vortex percolation and confinement

Abstract

The vortex state which arises from a projection of SU(2) to $Z_2$ gauge theory is studied at finite temperatures with a special emphasis on the deconfinement phase transition.

6 pages, 4 PS figures, LaTeX using PSFIG, talk presented at the workshop ''Understanding confinement'', ECT* Trento, March 1 - 13, 1999