A Quantum Secure Direct Communication Protocol Without Quantum Memories

被引：16
|
作者：
Yang, Yun-yan [1 ]
机构：
[1] Harbin Engn Univ, Dept Math, Harbin 150001, Peoples R China
来源：
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2014年 / 53卷 / 07期
关键词：
Quantum secure direct communication; Quantum memory; Unitary operators; 4-QUBIT CLUSTER STATES; SINGLE PHOTONS; NETWORK;
D O I：
10.1007/s10773-014-2021-0
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this Letter, we propose a quantum secure direct communication protocol based on single photons without quantum memories. In the proposed protocol, quantum states are transmitted in a stream but not in a quantum data block, hence, quantum memories are unnecessary. Compare with other protocols the advantages of our protocol are smaller quantum space usage, lower cost and more easily being implemented experimentally.
引用
收藏
页码：2216 / 2221
页数：6
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