Electronic cluster state entanglement concentration based on charge detection

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

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.

Keywords: entanglement concentration quantum computation cluster states

Received: 19 May 2013
Revised: 16 July 2013
Accepted manuscript online:

PACS:	03.67.Hk	(Quantum communication)
	03.65.Ud	(Entanglement and quantum nonlocality)
	03.67.Lx	(Quantum computation architectures and implementations)

Fund: 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.

Corresponding Authors: Sheng Yu-Bo
E-mail: shengyb@njupt.edu.cn

About author: 03.67.Hk; 03.65.Ud; 03.67.Lx

Cite this article:

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 2014 Chin. Phys. B 23 020313

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Electronic cluster state entanglement concentration based on charge detection

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