Nonclassical statistical properties of a three-level atom interacting with a single-mode field in a Kerr medium with intensity dependent coupling

摘要

We study the interaction of a. three-level atom with a single mode field in a cavity containing a Kerr-like medium. Involving intensity dependent coupling, the wave function for the atomic system of V-configuration is obtained when the atom is initially prepared in the excited state. Considering the field to be initially in a coherent state, we evaluate the entropy of the cavity field. the Mandel Q parameter, normal, amplitude-squared and amplitude-cubed squeezing and quasiprobability Q-function of the field. We discuss numerically the influence of the Kerr medium, the detunings and the presence of the intensity dependent coupling on their evolution and show that they have an important effect on the temporal behaviour of the considered statistical properties. Finally, conclusions and some features and comments are given. (C) 2003 Elsevier B.V. All rights reserved. [References: 71]