Deconfinement through chiral symmetry restoration in two-flavour QCD

We propose that in QCD with dynamical quarks, colour deconfinement occurs w hen an external field induced by the chiral condensate strongly aligns the Polyakov loop. This Effect sets in at the chiral symmetry restoration tempe rature T-chi and thus makes deconfinement and chiral symmetry restoration c oincide. The predicted singular behaviour of Polyakov loop susceptibilities at T-chi is shown to be supported by finite temperature lattice calculatio ns.