  We study the Z 3 meta-stable states in the Polyakov loop Nambu-Jona-Lasinio
(PNJL) model. These states exist for temperatures above T m ~ 194 MeV and can
decay via bubble nucleation. We numerically solve the bounce equation to
compute the nucleation rate. We speculate that, in the context of heavy-ion
collisions, the likely scenario for the decay of the meta-stable states is via
spinodal decomposition.
