中国物理B ›› 2016, Vol. 25 ›› Issue (5): 50305-050305.doi: 10.1088/1674-1056/25/5/050305

• GENERAL • 上一篇    下一篇

Multi-hop teleportation based on W state and EPR pairs

Hai-Tao Zhan(占海涛), Xu-Tao Yu(余旭涛), Pei-Ying Xiong(熊佩颖), Zai-Chen Zhang(张在琛)   

  1. 1. State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China;
    2. National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
  • 收稿日期:2015-09-25 修回日期:2016-01-07 出版日期:2016-05-05 发布日期:2016-05-05
  • 通讯作者: Zai-Chen Zhang E-mail:zczhang@seu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 61571105), the Prospective Future Network Project of Jiangsu Province, China (Grant No. BY2013095-1-18), and the Independent Project of State Key Laboratory of Millimeter Waves, China (Grant No. Z201504).

Multi-hop teleportation based on W state and EPR pairs

Hai-Tao Zhan(占海涛)1, Xu-Tao Yu(余旭涛)1, Pei-Ying Xiong(熊佩颖)1, Zai-Chen Zhang(张在琛)2   

  1. 1. State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China;
    2. National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
  • Received:2015-09-25 Revised:2016-01-07 Online:2016-05-05 Published:2016-05-05
  • Contact: Zai-Chen Zhang E-mail:zczhang@seu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 61571105), the Prospective Future Network Project of Jiangsu Province, China (Grant No. BY2013095-1-18), and the Independent Project of State Key Laboratory of Millimeter Waves, China (Grant No. Z201504).

摘要: Multi-hop teleportation has significant value due to long-distance delivery of quantum information. Many studies about multi-hop teleportation are based on Bell pairs, partially entangled pairs or W state. The possibility of multi-hop teleportation constituted by partially entangled pairs relates to the number of nodes. The possibility of multi-hop teleportation constituted by double W states is (4/9)n after n-hop teleportation. In this paper, a multi-hop teleportation scheme based on W state and EPR pairs is presented and proved. The successful possibility of quantum information transmitted hop by hop through intermediate nodes is deduced. The possibility of successful transmission is (2/3)n after n-hop teleportation.

关键词: multi-hop teleportation, W state, Bell pairs

Abstract: Multi-hop teleportation has significant value due to long-distance delivery of quantum information. Many studies about multi-hop teleportation are based on Bell pairs, partially entangled pairs or W state. The possibility of multi-hop teleportation constituted by partially entangled pairs relates to the number of nodes. The possibility of multi-hop teleportation constituted by double W states is (4/9)n after n-hop teleportation. In this paper, a multi-hop teleportation scheme based on W state and EPR pairs is presented and proved. The successful possibility of quantum information transmitted hop by hop through intermediate nodes is deduced. The possibility of successful transmission is (2/3)n after n-hop teleportation.

Key words: multi-hop teleportation, W state, Bell pairs

中图分类号:  (Quantum communication)

  • 03.67.Hk
03.65.Ud (Entanglement and quantum nonlocality)