中国物理B ›› 2006, Vol. 15 ›› Issue (5): 907-911.doi: 10.1088/1009-1963/15/5/005

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Optimal conclusive teleportation of a d-dimensional two-particle unknown quantum state

朱辅臣1, 杨宇光2, 温巧燕2   

  1. (1)National Defense Science and Technology Secrecy Communications Key Lab, Southwest Communications Institute,Chengdu 610041, China; (2)Science School, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 收稿日期:2005-09-29 修回日期:2005-12-05 出版日期:2006-05-20 发布日期:2006-05-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 60373059), the Major Research Plan of the National Natural Science Foundation of China (Grant No 90604023) and the Doctoral Foundation of the State Education Ministry of China

Optimal conclusive teleportation of a d-dimensional two-particle unknown quantum state

Yang Yu-Guang (杨宇光)a, Wen Qiao-Yan (温巧燕)a, Zhu Fu-Chen (朱辅臣)b    

  1. a Science School, Beijing University of Posts and Telecommunications, Beijing 100876, China; b National Defense Science and Technology Secrecy Communications Key Lab, Southwest Communications Institute, Chengdu 610041, China
  • Received:2005-09-29 Revised:2005-12-05 Online:2006-05-20 Published:2006-05-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 60373059), the Major Research Plan of the National Natural Science Foundation of China (Grant No 90604023) and the Doctoral Foundation of the State Education Ministry of China

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摘要： A conclusive teleportation protocol of a d-dimensional two-particle unknown quantum state using three d-dimensional particles in an arbitrary pure state is proposed. A sender teleports the unknown state conclusively to a receiver by using the positive operator valued measure(POVM) and introducing an ancillary qudit to perform the generalized Bell basis measurement. We calculate the optimal teleportation fidelity. We also discuss and analyse the reason why the information on the teleported state is lost in the course of the protocol.

关键词: teleportation, POVM, generalized Bell basis, teleportation fidelity

Abstract: A conclusive teleportation protocol of a d-dimensional two-particle unknown quantum state using three d-dimensional particles in an arbitrary pure state is proposed. A sender teleports the unknown state conclusively to a receiver by using the positive operator valued measure(POVM) and introducing an ancillary qudit to perform the generalized Bell basis measurement. We calculate the optimal teleportation fidelity. We also discuss and analyse the reason why the information on the teleported state is lost in the course of the protocol.

Key words: teleportation, POVM, generalized Bell basis, teleportation fidelity

中图分类号:  (Entanglement and quantum nonlocality)

  • 03.65.Ud