High-Capacity Quantum Secure Direct Communication Based on Quantum Hyperdense Coding with Hyperentanglement

被引：137
作者：
Wang Tie-Jun [1 ,2 ,3 ]
Li Tao [1 ]
Du Fang-Fang [1 ]
Deng Fu-Guo [1 ]
机构：
[1] Beijing Normal Univ, Dept Phys, Appl Opt Beijing Area Major Lab, Beijing 100875, Peoples R China
[2] Beijing Normal Univ, Coll Nucl Sci & Technol, Beijing 100875, Peoples R China
[3] Beijing Radiat Ctr, Beijing 100875, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2011年 / 28卷 / 04期
基金：
中国国家自然科学基金; 北京市自然科学基金;
关键词：
BELL THEOREM; EPR PAIRS; CRYPTOGRAPHY; STATES; ENTANGLEMENT; TELEPORTATION; PHOTONS; CHANNEL; ORDER;
D O I：
10.1088/0256-307X/28/4/040305
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present a quantum hyperdense coding protocol with hyperentanglement in polarization and spatial-mode degrees of freedom of photons first and then give the details for a quantum secure direct communication (QSDC) protocol based on this quantum hyperdense coding protocol. This QSDC protocol has the advantage of having a higher capacity than the quantum communication protocols with a qubit system. Compared with the QSDC protocol based on superdense coding with. d-dimensional systems, this QSDC protocol is more feasible as the preparation of a high-dimension quantum system is more difficult than that of a two-level quantum system at present.
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页数：4
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