PERIODIC SQUEEZING IN THE TAVIS-CUMMINGS MODEL

By utilizing our previous operator solution [17], we have investigated the squeezing in the radiation field of the Tavis-Cummings model (col lective N much greater than 1 two-level atoms interacting with a reson ant single cavity quantized mode). With field and atoms initially in c oherent field state strong or weak and atomic coherent state (of few e xcited atoms), periodic time-dependent squeezing in the field and the macroscopic polarization is expressed in terms of Jacobian elliptic fu nctions of the first kind. The statistical investigations are carried out for the quasiprobability distribution functions (Wigner function a nd Q function). The distribution function of the field quadrature has a variance less (greater) than that for a coherent state if this quadr ature is squeezed (unsqueezed).