太赫兹量子通信  

Terahertz quantum communication

作　　者：郭海琳 孙东云 刘昊鑫 张翠玲 杨哲 张存林[1,2] GUO Hailin;SUN Dongyun;LIU Haoxin;ZHANG Cuiling;YANG Zhe;ZHANG Cunlin(Department of Physics,Capital Normal University,Beijing 100048,China;Key Laboratory of Terahertz Optoelectronics,Ministry of Education,Beijing 100048,China)

机构地区：[1]首都师范大学物理系,北京100048 [2]太赫兹光电子学教育部重点实验室,北京100048

出　　处：《量子电子学报》2025年第1期1-17,共17页Chinese Journal of Quantum Electronics

基　　金：国家自然科学基金项目(12104251,61875140);北京市自然科学基金项目(4181001)。

摘　　要：量子通信是利用量子态进行信息传递的新型通信方式,主要包括量子密钥分发和量子安全直接通信等研究领域。由于其通信方式基于量子力学特性,量子通信理论上可实现无法被窃听且无法被计算破解的绝对安全通信。太赫兹波段因其高频率、大带宽特性已成为第六代(6G)无线通信的首选频段,因此太赫兹通信与量子通信的结合有望在6G时代的安全通信中发挥重要作用。本文首次全面综述了太赫兹量子通信的发展现状,重点梳理和总结了太赫兹量子密钥分发在地面大气环境以及星链间的研究进展。Quantum communication is an innovative method of transmitting information that utilizes quantum states.It encompasses research areas such as quantum key distribution and quantum secure direct communication.By harnessing the properties of quantum mechanics,quantum communication enables theoretically absolute secure transmission that is immune to eavesdropping or decryption through computational means.The terahertz band,well-known for its high frequency and wide bandwidth capabilities,has emerged as the preferred frequency range for 6th Generation(6G)wireless communication.Therefore,the combination of terahertz communication with quantum communication holds great potential for enhancing secure communication in the era of 6G.This article offers a comprehensive overview of the advancements in terahertz quantum communication for the first time,with a specific focus on the latest research progress of terahertz quantum key distribution in terrestrial atmospheric environments and inter-satellite link.

关 键 词：量子光学 量子通信 太赫兹量子通信 量子密钥分发 量子安全直接通信 

分 类 号：TN91[电子电信—通信与信息系统]