Open AccessРегистрация однофотонного сигнала от низколетящих спутников для целей спутникового квантового распределения ключей
Author(s) -
А.В. Хмелев,
А.В. Дуплинский,
В.Ф. Майборода,
Р.М. Бахшалиев,
М.Ю. Баланов,
В.Л. Курочкин,
Ю.В. Курочкин
Publication year - 2021
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2021.17.51387.18817
Subject(s) - quantum key distribution , satellite , polarization (electrochemistry) , residual , signal (programming language) , computer science , physics , photon , low earth orbit , remote sensing , optics , algorithm , geography , chemistry , astronomy , programming language
A ground-based receiving station for quantum key distribution with a satellite, capable of analyzing the quantum polarization states of photons, is demonstrated. In the experiment on tracking a low-Earth orbit satellite, the residual tracking error by the ground station does not exceed 10 μrad, which ensures stable reception of the optical signal in four channels of the polarization state decoder. An estimation of the efficiency of registration of an optical signal in the mode of tracking satellites is carried out.