学术
基于纠缠的数据链路层量子通信协议
周南润[1] 曾贵华[2] 龚黎华[1] 刘三秋[3]
[1]南昌大学电子信息工程系,南昌330031 [2]上海交通大学电子工程系,上海200240 [3]南昌大学物理系,南昌330031
摘 要:
利用量子力学中的纠缠关联性,提出了数据链路层的量子通信协议.该协议把线路分为忙闲时段,量子纠缠态的分发预先在闲时段完成,数据经由经典链路发送,确认帧经由量子纠缠信道发送.量子信息的传输可以是瞬时的,因此两个发送成功的数据帧之间的最小时间间隔可以大为减小.研究表明该协议能有效地提高数据链路的最大吞吐量,改善数据链路层停止等待协议的性能.[著者文摘]
文章出处:
《物理学报》-2007年56卷9期 -5066-5070页
栏目信息:
分 类 号:
Quantum communication protocol for data link layer based on entanglement
Zhou Nan-Run,Zeng Gui-Hua, Gong Li-Hua, Liu San-Qiu （1Deptartment of Electronics Information Engineering, Nanchang University, Nanchang 330031, China; 2Electronic Engineering Department, Shanghai Jiaotong University, Shanghai 200240, China; 3Department of Physics , Nanchang University, Nanchang 330031, China）
Abstract:
By exploiting the entanglement correlation in quantum mechanics, a quantum communication, protocol for data link layer is proposed. The protocol divides the link into busy time and leisure time, where the data is sent via classical channel and the distribution of quantum entanglement is supposed to be completed at leisure time and the acknowledge frame is sent via quantum entanglement channel. The transmission of quantum information can be instantaneous; therefore the minimum time span between two successfully delivered data frames can be significantly reduced. It is shown that the proposed protocol enhances the maximum throughput effectively and improves the performance of the stop-and-wait protocol of data link layer.[著者文摘]
Key words:
quantum communication, entanglement, stop-and-wait protocol, data link
基金资助:
国家自然科学基金（批准号：10647133,60472018）,江西省自然科学基金（批准号：0512007）,江西省教育厅科技项目（批准号：[2007]22号）和南昌大学引进人才科研启动费资助的课题.
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