摘要
We propose a potential scheme of preparing Schrodinger-cat state of the cavity mode by placing an rfsuperconducting quantum interference device （rf-SQUID） in a single-mode microwave cavity. By properly adjusting the detuning and the strength regarding the radiation fields, we show how to generate single-mode Schrodinger-cat state. Generalizing this method we discuss the generation of the engtangled coherent states. The experimental feasibility of our scheme is discussed under consideration of the cavity decay.
基金
National Natural Science Foundation of China under Grant Nos.10474118 and 6049028
Scientific Fund for Distinguished Young Scholars of Hubei Province,and partly by the National Fundamental Research Program of China under Grant No.2005CB724502
