Study of the characteristics of the synchronization algorithm for a quantum key distribution system based on comparing the number of samples from an adjacent pair of time windows with a threshold level | Zendy

Y. K. Mironov | Zendy; Polina Mironova | Zendy; Konstantin Rumyantsev | Zendy

Open Access

Study of the characteristics of the synchronization algorithm for a quantum key distribution system based on comparing the number of samples from an adjacent pair of time windows with a threshold level

Author(s) -

Y. K. Mironov,

Polina Mironova,

Konstantin Rumyantsev

Publication year - 2021

Publication title -

iop conference series materials science and engineering

Language(s) - English

Resource type - Journals

eISSN - 1757-899X

pISSN - 1757-8981

DOI - 10.1088/1757-899x/1069/1/012011

Subject(s) - quantum key distribution , algorithm , false alarm , computer science , signal (programming language) , synchronization (alternating current) , probabilistic logic , photon , physics , mathematics , optics , statistics , telecommunications , channel (broadcasting) , programming language

The analysis of time and probabilistic characteristics is carried out for a two-stage synchronization algorithm in a quantum key distribution (QKD) system with automatic compensation of polarization distortions. Formulas are obtained for calculating the missing probabilities a signal pair of windows, false alarm and successful synchronization. The dependences of the missing probability a signal pair on the average number of photons and noise pulses are investigated during the analysis of a pair of windows for different threshold levels. The numerical material obtained in the course of the study indicates the possibility of using for express calculations the probability of detecting a signal pair of windows formulas oriented to the normal distribution of the number of recorded pulses at the output of a single-photon avalanche photodiode.

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