INDUCED LATTICE DIELECTRIC GAUGE-THEORY AT FINITE-TEMPERATURE

Some properties of the lattice dielectric gauge theories (LDGT) at fin ite temperature are studied and discussed. We have found several essen tial points to be mentioned: 1) a deconfinement phase transition takes place at certain values of the dielectric potential parameters; 2) th e space-like Wilson loop obeys an area law at any temperature; 3) the possibility of introducing a gauge invariant mass for the dielectric f ield leads to the existence of magnetic charge and sources of gluon cu rrent screening. Such properties could mean a lack of an infrared prob lem in dielectric theories in contrast to pure Yang-Mills theories at T not-equal 0. We show how a version of LDGT can appear for static mod es of high-temperature lattice Wilson QCD and discuss the general prop erties of the effective model obtained.