A QUANTUM-STATISTICAL THREE-LEVEL CASCADE JAYNES-CUMMINGS MODEL
量子统计的级联三能级Jaynes-Cummings模型

A quantum-statistical model for a three-level cascade atom interacting with radiation fields initially in coherent states is presented. By means of numerical summation and saddle-point approximation, the expectation values of the atomic-level operators and the photon numbers are obtained and discussed, which reveals the phenomena such -as the twophoton transitions and the new collapse and revival.