We propose a picture that the chiral phase transition at zero quark mass and
the deconfinement transition at infinite quark mass are continuously connected.
This gives a simple interpretation on the coincidence of the pseudo-critical
temperatures observed in lattice QCD. We discuss a possible dynamical mechanism
behind the simultaneous crossovers and show the results in a model study.Comment: Contributed to the XXII International Symposium on Lattice Field
Theory (Lattice2004(nonzero)), Batavia, Illinois, Jun 21-26, 200