Jm. Liu et D. Gong, VARIATIONAL STUDY OF 3-DIMENSIONAL SU(2) LATTICE GAUGE-THEORY WITH INDEPENDENT PLAQUETTE TRIAL ACTION, High energy physics & nuclear physics, 17(1), 1993, pp. 45-52
The phase structure of 3-dimensional SU(2) lattice gauge theory is stu
died by using variational method with an independent plaquette trial a
ction. The mean-plaquette internal energy E(p) approximately beta curv
e is smooth, which shows only one confining phase, and is better than
that given by independent link trial action.