V-type Three-level Moving Atom And Bimodal Cavity Field Interaction Of The Light Field In The Quantum Properties

The influences of atomic motion on the quantum coherence and squeezing of photon field are investigated in the interaction between a moving V-type three level atom and two-mode cavity field by means of quantum theory and the method of numerical analysis. The results show, on the one hand, that the second-order coherence of the photon field exhibits clearly the periodical collapse-revivals in case of a small parameter of the atomic motion. Increasing this parameter can reduce the intensities of both anti-bunching and bunching. When the intensity of initial photon field is increased, the intensity of anti-bunching becomes bigger while the intensity of bunching smaller, and the intensity and lasting time of negative correlation between the two mode is also increased. On the other hand, atomic motion has important effect on the squeezing properties of photon field. The squeezed degree of the component U1 becomes deeper with the increasing of the parameter of atomic motion, while the component U2 cannot be squeezed.