Mesoscopic entangled coherent states implemented with a circuit quantum electrodynamics system

doi:10.1088/1674-1056/22/5/050308

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

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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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