  We investigated the gauge (in)dependence of the confinement mechanism due to
monopole condensation in SU(2) lattice QCD by various abelian projections. We
found (1) the string tension can be reproduced by monopoles alone also in
Polyakov gauge and (2) the behaviors of the Polyakov loop at the critical
temperature seem to be explained by the uniformity breaking of the monopole
currents in every gauge.
