中国物理B ›› 2010, Vol. 19 ›› Issue (1): 10303-010303.doi: 10.1088/1674-1056/19/1/010303

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Deterministic and exact entanglement teleportation viathe W state

温巧燕1, 上官丽英1, 陈秀波2, 杨义先2, 孙中旭3   

  1. (1)State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China; (2)State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China;Key Laboratory of Network and Information Attack and Defence Technology of Ministry of Education, Beijing University o; (3)Water Supply Company of Daqing Petroleum Administration, Daqing 163453, China
  • 收稿日期:2009-02-02 修回日期:2009-04-13 出版日期:2010-01-15 发布日期:2010-01-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 60873191 and 60821001), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 200800131016), the Key Project of Chinese Ministry of Education (Grant No. 109014), the China Postdoctoral Science Foundation Funded Project (Grant No.~20090450018), the Beijing Natural Science Foundation (Grant No. 4072020), the 111 Project (Grant No.~B08004) and the National Basic Research Program of China (Grant No. 2007CB311203).

Deterministic and exact entanglement teleportation viathe W state

Chen Xiu-Bo(陈秀波)a)b)c)†, Wen Qiao-Yan(温巧燕)a), Sun Zhong-Xu(孙中旭)d), Shangguan Li-Ying(上官丽英)a), and Yang Yi-Xian(杨义先)a)b)c)   

  1. a State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China; b Key Laboratory of Network and Information Attack and Defence Technology of Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, Chinac National Engineering Laboratory for Disaster Backup and Recovery, Beijing University of Posts and Telecommunications, Beijing 100876, Chinad Water Supply Company of Daqing Petroleum Administration, Daqing 163453, China
  • Received:2009-02-02 Revised:2009-04-13 Online:2010-01-15 Published:2010-01-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 60873191 and 60821001), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 200800131016), the Key Project of Chinese Ministry of Education (Grant No. 109014), the China Postdoctoral Science Foundation Funded Project (Grant No. 20090450018), the Beijing Natural Science Foundation (Grant No. 4072020), the 111 Project (Grant No. B08004) and the National Basic Research Program of China (Grant No. 2007CB311203).

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摘要： Utilizing a three-particle W state, we come up with a protocol for the teleportation of an unknown two-particle entangled state. It is shown that the teleportation can be deterministically and exactly realized. Moreover, two-particle entanglement teleportation is generalized to a system consisting of many particles via a three-particle W state and a multi-particle W state, respectively. All unitary transformations performed by the receiver are given in a concise formula.

Abstract: Utilizing a three-particle W state, we come up with a protocol for the teleportation of an unknown two-particle entangled state. It is shown that the teleportation can be deterministically and exactly realized. Moreover, two-particle entanglement teleportation is generalized to a system consisting of many particles via a three-particle W state and a multi-particle W state, respectively. All unitary transformations performed by the receiver are given in a concise formula.

Key words: quantum teleportation, W state, unitary transformations

中图分类号:  (Entanglement and quantum nonlocality)

  • 03.65.Ud
03.67.Hk (Quantum communication) 03.67.Mn (Entanglement measures, witnesses, and other characterizations)