  A general time-dependent projection technique is applied to the study of the
dynamics of quantum correlations in a system consisting of interacting
fermionic and bosonic subsystems, described by the Jaynes-Cummings Hamiltonian.
The amplitude modulation of the Rabi oscillations which occur for a strong,
coherent initial bosonic field is obtained from the spin intrinsic
depolarization resulting from collisional corrections to the mean-field
approximation.
