Quantum information transmission in the quantum wireless multihop network based on Werner state

doi:10.1088/1674-1056/24/5/050308

中国物理B ›› 2015, Vol. 24 ›› Issue (5): 50308-050308.doi: 10.1088/1674-1056/24/5/050308

Quantum information transmission in the quantum wireless multihop network based on Werner state

施丽慧^a, 余旭涛^a, 蔡晓菲^a, 龚彦晓^b, 张在琛^c

a State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China;
b Department of Physics, Southeast University, Nanjing 211189, China;
c State Key Laboratory of Mobile Communications, Southeast University, Nanjing 210096, China

收稿日期:2014-09-07 修回日期:2014-11-21 出版日期:2015-05-05 发布日期:2015-05-05
基金资助:
Project Project Project of State Key Laboratory of Millimeter Waves (Grant No. Z201504).

Quantum information transmission in the quantum wireless multihop network based on Werner state

Shi Li-Hui (施丽慧)^a, Yu Xu-Tao (余旭涛)^a, Cai Xiao-Fei (蔡晓菲)^a, Gong Yan-Xiao (龚彦晓)^b, Zhang Zai-Chen (张在琛)^c

a State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China;
b Department of Physics, Southeast University, Nanjing 211189, China;
c State Key Laboratory of Mobile Communications, Southeast University, Nanjing 210096, China

Received:2014-09-07 Revised:2014-11-21 Online:2015-05-05 Published:2015-05-05
Contact: Yu Xu-Tao E-mail:yuxutao@seu.edu.cn
About author:03.67.Hk; 03.65.Ud
Supported by:
Project Project Project of State Key Laboratory of Millimeter Waves (Grant No. Z201504).

摘要/Abstract

摘要： Many previous studies about teleportation are based on pure state. Study of quantum channel as mixed state is more realistic but complicated as pure states degenerate into mixed states by interaction with environment, and the Werner state plays an important role in the study of the mixed state. In this paper, the quantum wireless multihop network is proposed and the information is transmitted hop by hop through teleportation. We deduce a specific expression of the recovered state not only after one-hop teleportation but also across multiple intermediate nodes based on Werner state in a quantum wireless multihop network. We also obtain the fidelity of multihop teleportation.

关键词: multihop network, Werner state, teleportation

Abstract: Many previous studies about teleportation are based on pure state. Study of quantum channel as mixed state is more realistic but complicated as pure states degenerate into mixed states by interaction with environment, and the Werner state plays an important role in the study of the mixed state. In this paper, the quantum wireless multihop network is proposed and the information is transmitted hop by hop through teleportation. We deduce a specific expression of the recovered state not only after one-hop teleportation but also across multiple intermediate nodes based on Werner state in a quantum wireless multihop network. We also obtain the fidelity of multihop teleportation.

Key words: multihop network, Werner state, teleportation

中图分类号: (Quantum communication)

03.67.Hk

03.65.Ud (Entanglement and quantum nonlocality)

施丽慧, 余旭涛, 蔡晓菲, 龚彦晓, 张在琛. Quantum information transmission in the quantum wireless multihop network based on Werner state[J]. 中国物理B, 2015, 24(5): 50308-050308.

Shi Li-Hui (施丽慧), Yu Xu-Tao (余旭涛), Cai Xiao-Fei (蔡晓菲), Gong Yan-Xiao (龚彦晓), Zhang Zai-Chen (张在琛). Quantum information transmission in the quantum wireless multihop network based on Werner state[J]. Chin. Phys. B, 2015, 24(5): 50308-050308.

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Quantum information transmission in the quantum wireless multihop network based on Werner state

Quantum information transmission in the quantum wireless multihop network based on Werner state

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