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Chin. Phys. B, 2013, Vol. 22(5): 050308    DOI: 10.1088/1674-1056/22/5/050308
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Mesoscopic entangled coherent states implemented with a circuit quantum electrodynamics system

Zhao Ying-Yan (赵英燕), Jiang Nian-Quan (姜年权)
Department of Physics, Wenzhou University, Wenzhou 325035, China
Abstract  We show a scheme to generate entangled coherent states in a circuit quantum electrodynamics system, which consists 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 nonlinear medium and can be conveniently controlled by a gate voltage including direct-current and alternating-current components. The scheme provides a powerful tool for preparing the multipartite mesoscopic entangled coherent states.
Keywords:  entanglement production and manipulation      superconducting devices  
Received:  21 September 2012      Revised:  03 December 2012      Accepted manuscript online: 
PACS:  03.67.Bg (Entanglement production and manipulation)  
  85.25.-j (Superconducting devices)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10947017/A05) and the Graduates' Innovative Scientific Research Project of Zhejiang Province, China (Grant No. 2011831).
Corresponding Authors:  Jiang Nian-Quan     E-mail:  jiangnq@wzu.edu.cn

Cite this article: 

Zhao Ying-Yan (赵英燕), Jiang Nian-Quan (姜年权) Mesoscopic entangled coherent states implemented with a circuit quantum electrodynamics system 2013 Chin. Phys. B 22 050308

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