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Hybrid entanglement concentration assisted with single coherent state |
| Rui Guo(郭锐)1, Lan Zhou(周澜)1,2, Shi-Pu Gu(顾世浦)3,Xing-Fu Wang(王兴福)2, Yu-Bo Sheng(盛宇波)1 |
1. Key Laboratory of Broadband Wireless Communication and Sensor Network Technology (Ministry of Education), Nanjing University of Posts and Telecommunications, Nanjing Nanjing 210003, China;
2. College of Mathematics & Physics, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;
3. College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China |
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Abstract Hybrid entangled state (HES) is a new type of entanglement, which combines the advantages of an entangled polarization state and an entangled coherent state. HES is widely discussed in the applications of quantum communication and computation. In this paper, we propose three entanglement concentration protocols (ECPs) for Bell-type HES, W-type HES, and cluster-type HES, respectively. After performing these ECPs, we can obtain the maximally entangled HES with some success probability. All the ECPs exploit the single coherent state to complete the concentration. These protocols are based on the linear optics, which are feasible in future experiments.
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Received: 15 October 2015
Revised: 03 November 2015
Accepted manuscript online:
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PACS:
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03.67.Hk
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(Quantum communication)
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03.65.Ud
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(Entanglement and quantum nonlocality)
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03.67.Lx
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(Quantum computation architectures and implementations)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11474168 and 61401222), the Natural Science Foundation of Jiangsu Province, China (Grant No. BK20151502), the Qing Lan Project in Jiangsu Province, China, the Natural Science Foundation of Jiangsu Higher Education Institutions, China (Grant No. 15KJA120002), and the Priority Academic Development Program of Jiangsu Higher Education Institutions, China. |
Corresponding Authors:
Yu-Bo Sheng
E-mail: shengyb@njupt.edu.cn
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Cite this article:
Rui Guo(郭锐), Lan Zhou(周澜), Shi-Pu Gu(顾世浦),Xing-Fu Wang(王兴福), Yu-Bo Sheng(盛宇波) Hybrid entanglement concentration assisted with single coherent state 2016 Chin. Phys. B 25 030302
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