Electronic cluster state entanglement concentration based on charge detection

doi:10.1088/1674-1056/23/2/020313

中国物理B ›› 2014, Vol. 23 ›› Issue (2): 20313-020313.doi: 10.1088/1674-1056/23/2/020313

Electronic cluster state entanglement concentration based on charge detection

刘炯^{a c}, 赵圣阳^{a c}, 周澜^{a b}, 盛宇波^{a c}

a Key Laboratory of Broadband Wireless Communication and Sensor Network Technology, Nanjing University of Posts and Telecommunications, Ministry of Education, Nanjing 210003, China;
b College of Mathematics & Physics, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;
c Institute of Signal Processing Transmission, Nanjing University of Posts and Telecommunications, Nanjing 210003, China

收稿日期:2013-05-19 修回日期:2013-07-16 出版日期:2013-12-12 发布日期:2013-12-12
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11104159 and 11347110), the University Natural Science Research Project of Jiangsu Province of China (Grant No. 13KJB140010), the Open Research Fund Program of National Laboratory of Solid State Microstructures, Nanjing University (Grant No. M25022), the Open Research Fund of Key Laboratory of Broadband Wireless Communication and Sensor Network Technology, Nanjing University of Posts and Telecommunications, Ministry of Education (Grant No. NYKL201303), and the Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.

Electronic cluster state entanglement concentration based on charge detection

Liu Jiong (刘炯)^{a c}, Zhao Sheng-Yang (赵圣阳)^{a c}, Zhou Lan (周澜)^{a b}, Sheng Yu-Bo (盛宇波)^{a c}

a Key Laboratory of Broadband Wireless Communication and Sensor Network Technology, Nanjing University of Posts and Telecommunications, Ministry of Education, Nanjing 210003, China;
b College of Mathematics & Physics, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;
c Institute of Signal Processing Transmission, Nanjing University of Posts and Telecommunications, Nanjing 210003, China

Received:2013-05-19 Revised:2013-07-16 Online:2013-12-12 Published:2013-12-12
Contact: Sheng Yu-Bo E-mail:shengyb@njupt.edu.cn
About author:03.67.Hk; 03.65.Ud; 03.67.Lx
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11104159 and 11347110), the University Natural Science Research Project of Jiangsu Province of China (Grant No. 13KJB140010), the Open Research Fund Program of National Laboratory of Solid State Microstructures, Nanjing University (Grant No. M25022), the Open Research Fund of Key Laboratory of Broadband Wireless Communication and Sensor Network Technology, Nanjing University of Posts and Telecommunications, Ministry of Education (Grant No. NYKL201303), and the Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.

摘要/Abstract

摘要： We propose an efficient entanglement concentration protocol (ECP) based on electron-spin cluster states assisted with single electrons. In the ECP, we adopt the electron polarization beam splitter (PBS) and the charge detector to construct the quantum nondemolition measurement. According to the result of the measurement of the charge detection, we can ultimately obtain the maximally entangled cluster states. Moreover, the discarded items can be reused in the next round to reach a high success probability. This ECP may be useful in current solid quantum computation.

关键词: entanglement concentration, quantum computation, cluster states

Abstract: We propose an efficient entanglement concentration protocol (ECP) based on electron-spin cluster states assisted with single electrons. In the ECP, we adopt the electron polarization beam splitter (PBS) and the charge detector to construct the quantum nondemolition measurement. According to the result of the measurement of the charge detection, we can ultimately obtain the maximally entangled cluster states. Moreover, the discarded items can be reused in the next round to reach a high success probability. This ECP may be useful in current solid quantum computation.

Key words: entanglement concentration, quantum computation, cluster states

中图分类号: (Quantum communication)

03.67.Hk

03.65.Ud (Entanglement and quantum nonlocality) 03.67.Lx (Quantum computation architectures and implementations)

刘炯, 赵圣阳, 周澜, 盛宇波. Electronic cluster state entanglement concentration based on charge detection[J]. 中国物理B, 2014, 23(2): 20313-020313.

Liu Jiong (刘炯), Zhao Sheng-Yang (赵圣阳), Zhou Lan (周澜), Sheng Yu-Bo (盛宇波). Electronic cluster state entanglement concentration based on charge detection[J]. Chin. Phys. B, 2014, 23(2): 20313-020313.

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Electronic cluster state entanglement concentration based on charge detection

Electronic cluster state entanglement concentration based on charge detection

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