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

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

中国物理B ›› 2012, Vol. 21 ›› Issue (4): 44209-044209.doi: 10.1088/1674-1056/21/4/044209

高贵龙¹,宋付权²,黄寿胜¹,王辉¹,袁先漳¹,王明锋¹,姜年权¹

收稿日期:2011-07-30 修回日期:2011-10-26 出版日期:2012-02-29 发布日期:2012-02-29
通讯作者: 姜年权,jiangnq@wzu.edu.cn E-mail:jiangnq@wzu.edu.cn

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

Gao Gui-Long (高贵龙)^a,Song Fu-Quan (宋付权)^b,Huang Shou-Sheng (黄寿胜)^a,Wang Hui (王辉)^a,Yuan Xian-Zhang (袁先漳)^a,Wang Ming-Feng (王明锋)^a,Jiang Nian-Quan (姜年权)^a

a. College of Physics and Electric Information, Wenzhou University, Wenzhou 325035, China;
b. Department of Physics, Zhejiang Normal University, Jinhua 321004, China

Received:2011-07-30 Revised:2011-10-26 Online:2012-02-29 Published:2012-02-29
Contact: Jiang Nian-Quan,jiangnq@wzu.edu.cn E-mail:jiangnq@wzu.edu.cn
Supported by:
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).

摘要/Abstract

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.

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

中图分类号: (Quantum state engineering and measurements)

42.50.Dv

85.25.Cp (Josephson devices) 85.25.Dq (Superconducting quantum interference devices (SQUIDs))

高贵龙, 宋付权, 黄寿胜, 王辉, 袁先漳, 王明锋, 姜年权. [J]. 中国物理B, 2012, 21(4): 44209-044209.

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[J]. Chin. Phys. B, 2012, 21(4): 44209-044209.

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

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