Visual media for monitoring trunk quantum networks

In this paper, we formulate ideas for visual media for trunk quantum networks with lines over 100 km. We investigate the local trends analysis of performance parameters for experimental demonstration of long-distance quantum communication and discuss the prospects of commercialization of quantum-classical cloud security services.Comment: arXiv admin note: text overlap with arXiv:1910.1001

Noise-immunity Kazan quantum line at 143 km regular fiber link

We experimentally demonstrate a long-distance quantum communication at 143 km between the city of Kazan and the urban-type village of Apastovo in the Republic of Tatarstan by using quantum key distribution prototype providing high noise-immunity of network lines and nodes due to phase coding in subcarrier wave. Average secret key generation rate was 12 bits per second with losses in the line of 37 decibels for a distance of 143 km during 16.5 hours of continuous field test. The commercialization perspectives of the demonstrated long-range QKD system are discussed