QCD Phase Transition and Hadron Bubble Formation in the Dual   Ginzburg-Landau Theory
  We study the QCD phase transition at finite temperature and discuss the hadron bubble formation in the dual Ginzburg-Landau theory, which is an effective theory of QCD and describes the color confinement via QCD-monopole condensation. We formulate the effective potential at various temperatures and find that thermal effects reduce the QCD-monopole condensate and bring a first-order deconfinement phase transition. Based on this effective potential at finite temperature, we investigate properties of hadron bubbles created in the early Universe and discuss the hadron bubble formation process. 
H. Ichie(RCNP, Osaka), H. Monden(TMU), H. Suganuma(RCNP, Osaka), H.   Toki(RCNP, Osaka)