Color Confinement and Dynamical Effect of Light Quarks in the Dual   Ginzburg-Landau Theory
  We study nonperturbative features of QCD using the dual Ginzburg-Landau theory. The color confinement is realized through the dual Higgs mechanism, which is brought by QCD-monopole condensation. We investigate the infrared screening effect on the color confinement due to the light-quark pair creation. By solving the Schwinger-Dyson equation, we find that the dynamical chiral-symmetry breaking is largely brought by the confining force. 
Hideo Suganuma(RIKEN), Shoichi Sasaki(RCNP) and Hiroshi   Toki(TMU,RIKEN)