STUDY OF SQUEEZING PROPERTIES IN A 2-LEVEL SYSTEM

We have studied the squeezing properties of a field and atom in a two- level system. The influence of nonlinear interactions (i.e. the arbitr ary intensity-dependent coupling of a single-mode field to a single tw o-level atom, the nonlinear interaction of the field with a nonlinear Kerr-like medium) on the squeezing is discussed in detail in the rotat ing wave approximation (RWA). We show numerically that the effect of t he virtual-photon field suppresses dipole squeezing predicted in the R WA and leads to an increased squeeze revival period; the suppressed sq ueezing can be revived due to the presence of the nonlinear Kerr-like medium.