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.
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)
