najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2023-14-3-342-348najo-311Research ArticlePHYSICSФИЗИКАMeasurement-device-independent continuous variable quantum key distribution protocol operation in optical transport networksРабота протокола квантового распределения ключей на непрерывных переменных, не зависящего от измерительных устройств, в оптических транспортных сетяхhttps://orcid.org/0000-0001-9861-0816ВоронцоваИ. О.VorontsovaI.

Irina Vorontsova

Kronverkskiy, 49, St. Petersburg, 197101

iovorontsova@itmo.ruhttps://orcid.org/0000-0002-9081-8900ГончаровР. К.GoncharovR.

Roman Goncharov

Kronverkskiy, 49, St. Petersburg, 197101

rkgoncharov@itmo.ruhttps://orcid.org/0000-0001-8698-1804КыневС. М.KynevS.

Sergey Kynev

Kronverkskiy, 49, St. Petersburg, 197101

6th Vasilyevskogo Ostrova Line, 59, St. Petersburg, 199178

sergey.kynev@itmo.ruhttps://orcid.org/0000-0002-3894-511XКиселёвФ. Д.KiselevF.

Fedor Kiselev

Kronverkskiy, 49, St. Petersburg, 197101

6th Vasilyevskogo Ostrova Line, 59, St. Petersburg, 199178

fdkiselev@itmo.ruhttps://orcid.org/0000-0003-0767-0261ЕгоровВ. И.EgorovV.

Vladimir Egorov

Kronverkskiy, 49, St. Petersburg, 197101

6th Vasilyevskogo Ostrova Line, 59, St. Petersburg, 199178

viegorov@itmo.ruITMO UniversityRussian FederationITMO University; SMARTS-Quanttelecom LLCRussian Federation202330062025143342348Copyright © Vorontsova I., Goncharov R., Kynev S., Kiselev F., Egorov V., 20252025Воронцова И.О., Гончаров Р.К., Кынев С.М., Киселёв Ф.Д., Егоров В.И.Vorontsova I., Goncharov R., Kynev S., Kiselev F., Egorov V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/311

Numerically, a theoretical analysis of the noise impact caused by spontaneous Raman scattering, four-wave mixing, and linear channel crosstalk on the measurement-device-independent continuous variable quantum key distribution systems is conducted. The analysis considers symmetry and asymmetry of system paths, as well as possible channel allocation schemes, for a quantum channel located in C- and O-bans. Mathematical models for MDI CV-QKD system and the contributing noises’ description are provided. The secure key generation rate is estimated to state features of protocol operation when integrated with existing DWDM systems in the context of its implementation into telecommunication networks.

Проведен численный анализ влияния шумов, вызванных спонтанным комбинационным рассеянием, четырехволновым смешением и линейными перекрестными помехами каналов, на независящие от измерительных устройств (MDI) системы квантового распределения ключей (КРК) на непрерывных переменных (НП). Анализ учитывает симметричность и асимметричность плеч системы, а также возможные схемы распределения каналов для квантового канала, расположенного в C- и O-диапазонах. Приведены математические модели для системы MDI КРКНП и описание указанных шумов. Оценивается скорость генерации секретного ключа с учетом особенностей работы протокола при интеграции с существующими системами DWDM в контексте последующей реализации в телекоммуникационных сетях.

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The authors declare that there are no conflicts of interest present.