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Обзор технологии квантового распределения ключей на непрерывных переменных в свободном пространстве
Д.А. Каргина1, Р.К. Гончаров1,2, М.В. Дашков3

1Университет ИТМО, Лаборатория квантовых коммуникаций, 197101, Россия, г. Санкт-Петербург, л. Кадетская, д. 3;
2ООО «СМАРТС-Кванттелеком», 199178, Россия, г. Санкт-Петербург, 6 линия В.О., д. 59, корп. 1, литер Б, пом. 17/6Н;
3ФГБОУ ВО «Поволжский государственный университет телекоммуникаций и информатики» (ПГУТИ), 443090, Россия, г. Самара, ул. Московское шоссе, д. 77

  Полный текст (PDF)

DOI: 10.18287/COJ1684

ID статьи: 1684

Аннотация:
Квантовое распределение ключей в свободном пространстве открывает новые возможности для разработки систем квантовых коммуникаций, облегчая процесс развертывания квантовых сетей в физически труднодоступных зонах и на широких ландшафтах без использования оптического волокна. Этот подход позволяет преодолевать ограничения, связанные с прокладкой кабелей, и обеспечивает более гибкую инфраструктуру для передачи квантовой информации. Вместе с применением протоколов на непрерывных переменных возможно организовать безопасную передачу информации с помощью оптимальных масштабируемых систем связи, несмотря на пагубное воздействие окружающей среды. В данной работе обсуждаются основные достижения и технические аспекты реализации квантового распределения ключей на непрерывных переменных в атмосферном канале с рассмотрением основных воздействий атмосферы, таких как турбулентность, рассеяние и блуждание луча. Представлено текущее состояние конструируемых квантовое распределение ключей на непрерывных переменных в открытом пространстве и их практические реализации, включая успешные экспериментальные проекты и прототипы. Обсуждаются перспективы дальнейшего развития технологий, включая интеграцию с существующими телекоммуникационными сетями и потенциальные области применения.

Ключевые слова:
квантовое распределение ключей, атмосферные квантовые каналы, турбулентность, непрерывные переменные.

Благодарности:
Исследование выполнено при поддержке Российского научного фонда (проект 24-29-00786).

Цитирование:
Каргина, Д.А. Обзор технологии квантового распределения ключей на непрерывных переменных в свободном пространстве / Д.А. Каргина, Р.К. Гончаров, М.В. Дашков // Компьютерная оптика. - 2026. - Т. 50, № 1. - 1684. - DOI: 10.18287/COJ1684.

Citation:
Kargina DA, Goncharov RK, Dashkov MV. Overview of free-space continuous-variable quantum key distribution technology. Computer Optics 2026; 50(1): 1684. DOI: 10.18287/COJ1684.

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