Quantum information-holding single-photon router based on spontaneous emission

被引：0
|
作者：
GuoAn Yan [1 ,2 ]
HaoXue Qiao [1 ]
Hua Lu [3 ,4 ]
AiXi Chen [5 ,6 ]
机构：
[1] School of Physics and Technology, Wuhan University
[2] State Key Laboratory of Magnetic Resonances and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics,Chinese Academy of Sciences
[3] School of Science, Hubei University of Technology
[4] Key Laboratory of Quantum Information, Chinese Academy of Sciences,University of Science and Technology of China
[5] Department of Applied Physics, Zhejiang Sci-Tech University
[6] Institute for Quantum Computing, University of Waterloo
来源：
Science China(Physics,Mechanics & Astronomy) | 2017年 / 09期
基金：
中国国家自然科学基金;
关键词：
quantum router; quantum information; quantum network; couple-resonator waveguides;
D O I：
暂无
中图分类号：
O413 [量子论]; TN918 [通信保密与通信安全];
学科分类号：
0839 ; 1402 ;
摘要：
In this paper, we propose a single-photon router via the use of a four-level atom system coupled with two one-dimensional coupled-resonator waveguides. A single photon can be directed from one quantum channel into another by atomic spontaneous emission. The coherent resonance and the photonic bound states lead to the perfect reflection appearing in the incident channel.The fidelity of the atom is related to the magnitude of the coupling strength and can reach unit when the coupling strength matches g;= g;. This shows that the transfer of a single photon into another quantum channel has no influence on the fidelity at special points.
引用
收藏
页码：6 / 11
页数：6
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