Long-distance quantum communication with "polarization" maximally entangled states

被引：1
|
作者：
Hong, Fang-Yu [1 ]
Xiong, Shi-Jie [2 ,3 ]
Tang, W. H. [1 ]
机构：
[1] Zhejiang Sci Tech Univ, Dept Phys, Ctr Optoelect Mat & Devices, Hangzhou 310018, Zhejiang, Peoples R China
[2] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
[3] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
来源：
ANNALS OF PHYSICS | 2010年 / 325卷 / 05期
关键词：
Quantum entanglement; Quantum repeater; Atomic ensemble; ATOMIC ENSEMBLES; NOISY CHANNELS; SINGLE PHOTONS; LIGHT; PURIFICATION; REPEATERS; STORAGE; OPTICS; NODES; DOT;
D O I：
10.1016/j.aop.2010.02.001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We propose a scheme for long-distance quantum communication where the elementary entanglement is generated through two-photon interference and quantum swapping is performed through one-photon interference. Local "polarization" maximally entangled states of atomic ensembles are generated by absorbing a single photon from on-demand single-photon sources. This scheme is robust against phase fluctuations in the quantum channels, moreover speeds up long-distance high-fidelity entanglement generation rate. (C) 2010 Elsevier Inc. All rights reserved.
引用
收藏
页码：1018 / 1025
页数：8
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