A simple scheme to generate $\chi$-type four-charge entangled states in circuit QED

doi:10.1088/1674-1056/21/4/044209

Abstract We propose a simple scheme to generate χ-type four-charge entangled states by using SQUID-based charge qubits capacitively coupled to a transmission line resonator (TLR). The coupling between the superconducting qubit and the TLR can be effectively controlled by properly adjusting the control parameters of the charge qubit. The experimental feasibility of our scheme is also shown.

Keywords: $\chi$-type entangled state superconducting quantum interference device transmission line resonator superconducting charge qubit

Received: 30 July 2011
Revised: 26 October 2011
Accepted manuscript online:

PACS:	42.50.Dv	(Quantum state engineering and measurements)
	85.25.Cp	(Josephson devices)
	85.25.Dq	(Superconducting quantum interference devices (SQUIDs))

Fund: Project supported by the National Natural Science Foundations of China (Grant Nos. 10947017/A05 and 11074190), the Science Foundation of the Key Laboratory of Novel Thin Film Solar Cells, China (Grant No. KF200912), and the Graduates’ Innovative Scientific Research Project of Zhejiang Province, China (Grant No. 2011831).

Corresponding Authors: Jiang Nian-Quan,jiangnq@wzu.edu.cn
E-mail: jiangnq@wzu.edu.cn

Cite this article:

Gao Gui-Long (高贵龙), Song Fu-Quan (宋付权), Huang Shou-Sheng (黄寿胜), Wang Hui (王辉), Yuan Xian-Zhang (袁先漳), Wang Ming-Feng (王明锋), Jiang Nian-Quan (姜年权) A simple scheme to generate $\chi$-type four-charge entangled states in circuit QED 2012 Chin. Phys. B 21 044209

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A simple scheme to generate $\chi$-type four-charge entangled states in circuit QED

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