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Chin. Phys. B, 2016, Vol. 25(5): 050305    DOI: 10.1088/1674-1056/25/5/050305
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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. State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China;
2. National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
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.
Keywords:  multi-hop teleportation      W state      Bell pairs  
Received:  25 September 2015      Revised:  07 January 2016      Accepted manuscript online: 
PACS:  03.67.Hk (Quantum communication)  
  03.65.Ud (Entanglement and quantum nonlocality)  
Fund: 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).
Corresponding Authors:  Zai-Chen Zhang     E-mail:  zczhang@seu.edu.cn

Cite this article: 

Hai-Tao Zhan(占海涛), Xu-Tao Yu(余旭涛), Pei-Ying Xiong(熊佩颖), Zai-Chen Zhang(张在琛) Multi-hop teleportation based on W state and EPR pairs 2016 Chin. Phys. B 25 050305

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