  An unstable condensate of diatomic molecules will coherently disassociate
into correlated pairs of atoms. This dissociation process exhibits very rich
quantum dynamics depending on the quantum statistics of the constituent atoms.
We show that in the case of bosonic atoms Bose-enhancement can lead to
stimulated dissociation, whereas, in the case of fermions Pauli-blocking of the
available states and a build-up of coherence between molecules and atom pairs
can give rise to incomplete dissociation of the molecules and transient
association-dissociation oscillations.
