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

被引：35

作者：

Shi Li-Hui ^{[1
]}

Yu Xu-Tao ^{[1
]}

Cai Xiao-Fei ^{[1
]}

Gong Yan-Xiao ^{[2
]}

Zhang Zai-Chen ^{[3
]}

机构：

[1] Southeast Univ, State Key Lab Millimeter Waves, Nanjing 210096, Jiangsu, Peoples R China

[2] Southeast Univ, Dept Phys, Nanjing 211189, Jiangsu, Peoples R China

[3] Southeast Univ, State Key Lab Mobile Commun, Nanjing 210096, Jiangsu, Peoples R China

来源：

CHINESE PHYSICS B | 2015年 / 24卷 / 05期

关键词：

multihop network; Werner state; teleportation; TELEPORTATION; REPEATERS;

D O I：

10.1088/1674-1056/24/5/050308

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

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.

引用

页数：5

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