Monopoles and spatial string tension in the high temperature phase of SU(2) QCD

We studied a behavior of monopole currents in the high temperature (deconfinement) phase of abelian projected finite temperature SU(2) QCD in maximally abelian gauge. Wrapped monopole currents closed by periodic boundary play an important role for the spatial string tension that is a non-perturbative quantity in the deconfinement phase. The wrapped monopole current density seems to be non-vanishing in the continuum limit. These results may be related to Polyakovʹs analysis of the confinement mechanism using monopole gas in 3-dimensional SU(2) gauge theory with Higgs fields.