Quantum interference effects of coherent instantaneous states and Berry phase
Ma Rui-Qiong, Li Yongfang, Shi Jian, (1)陕西师范大学，物理学与信息技术学院，西安 710062; (2)西安邮电学院，电子与信息工程系，西安 710061 · Acta Physica Sinica · 2008
We present the analytic expressions for different types of quantum interference effects in coherent instantaneous state quantum system, and discuss the behaviors of the optics and quantum interference, respectively. The important role that the geometrical phase plays in quantum interference is analyzed in detail for the first time. It is demonstrated theoretically that the measurement of the geometrical phase can be realized by appropriately choosing the pulse area of the pump field. The valid control of the quantum interference is achieved by manipulating the chirped pump field.