On the quantum-channel capacity for orbital angular momentum-based free-space optical communications

被引：26
|
作者：
Zhang, Yequn [1 ]
Djordjevic, Ivan B. [1 ]
Gao, Xin [1 ]
机构：
[1] Univ Arizona, Dept Elect & Comp Engn, Tucson, AZ 85721 USA
来源：
OPTICS LETTERS | 2012年 / 37卷 / 15期
基金：
美国国家科学基金会;
关键词：
ATMOSPHERIC-TURBULENCE;
D O I：
10.1364/OL.37.003267
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Inspired by recent demonstrations of orbital angular momentum-(OAM)-based single-photon communications, we propose two quantum-channel models: (i) the multidimensional quantum-key distribution model and (ii) the quantum teleportation model. Both models employ operator-sum representation for Kraus operators derived from OAM eigenkets transition probabilities. These models are highly important for future development of quantum-error correction schemes to extend the transmission distance and improve date rates of OAM quantum communications. By using these models, we calculate corresponding quantum-channel capacities in the presence of atmospheric turbulence. (C) 2012 Optical Society of America
引用
收藏
页码：3267 / 3269
页数：3
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