Study of Long-Term Stability of Free-Space Quantum Key Distribution at a Distance of 20 m in a Polarization Coding Scheme

IF 0.5 Q4 PHYSICS, MULTIDISCIPLINARY

Optoelectronics Instrumentation and Data Processing Pub Date : 2024-06-20 DOI:10.3103/s8756699024700055

A. S. Pleshkov, A. V. Kolyako, D. B. Tret’yakov, I. I. Ryabtsev, I. G. Neizvestnyi

引用次数: 0

Abstract

The operation of our atmospheric quantum cryptography system using the BB84 protocol and polarization coding is experimentally studied. The distribution rate of the sifted quantum key and the quantum bit error rate in the key remained constant for 1 hour and were \(7558\pm 83\) bit s\({}^{-1}\) and \(5.1\pm 0.84\%\), respectively, at the distance of 20 m between the transmitter and receiver. The minimum possible transmittance of a quantum channel, ensuring the security of a quantum key, is calculated for the given parameters of the system

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极化编码方案中 20 米距离自由空间量子密钥分发的长期稳定性研究

摘要实验研究了使用BB84协议和极化编码的大气量子密码系统的运行情况。在发射器和接收器之间的距离为20米时，筛分量子密钥的分发率和密钥中的量子比特错误率在1小时内保持不变，分别为（7558/pm 83/）比特（{}^{-1}/）和（5.1/pm 0.84%/%）。根据给定的系统参数，可以计算出确保量子密钥安全的量子信道的最小可能传输率

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optoelectronics Instrumentation and Data Processing PHYSICS, MULTIDISCIPLINARY-

CiteScore

1.00

自引率

50.00%

发文量

期刊介绍： The scope of Optoelectronics, Instrumentation and Data Processing encompasses, but is not restricted to, the following areas: analysis and synthesis of signals and images; artificial intelligence methods; automated measurement systems; physicotechnical foundations of micro- and optoelectronics; optical information technologies; systems and components; modelling in physicotechnical research; laser physics applications; computer networks and data transmission systems. The journal publishes original papers, reviews, and short communications in order to provide the widest possible coverage of latest research and development in its chosen field.