Mesoscopic entangled coherent states implemented with a circuit quantum electrodynamics system  

作　　者：赵英燕 姜年权 

机构地区：[1]Department of Physics,Wenzhou University

出　　处：《Chinese Physics B》2013年第5期147-151,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No. 10947017/A05);the Graduates’ Innovative Scientific Research Project of Zhejiang Province, China (Grant No. 2011831)

摘　　要：We show a scheme to generate entangled coherent states in a circuit quantum electrodynamics system, which con- sists of a nanomechanical resonator, a superconducting Cooper-pair box （CPB）, and a superconducting transmission line resonator. In the system, the CPB plays the role of a nonlinear medium and can be conveniently controlled by a gate volt- age including direct-current and alternating-current components. The scheme provides a powerful tool for preparing the multipartite mesoscopic entangled coherent states.We show a scheme to generate entangled coherent states in a circuit quantum electrodynamics system, which con- sists of a nanomechanical resonator, a superconducting Cooper-pair box （CPB）, and a superconducting transmission line resonator. In the system, the CPB plays the role of a nonlinear medium and can be conveniently controlled by a gate volt- age including direct-current and alternating-current components. The scheme provides a powerful tool for preparing the multipartite mesoscopic entangled coherent states.

关 键 词：entanglement production and manipulation superconducting devices 

分 类 号：O431.2[机械工程—光学工程]