This manuscript discusses the most relevant aspects of the practical implementation of a long-range Quantum Key Distribution (QKD) link with trusted nodes, achieving the highest possible secret key rate generation within the security and system-level constraints. To this purpose, the implementation of an end-to-end QKD system is described, including implementation aspects from the physical transmission of photon states through a standard telecommunications grade optical fiber, to consideration of quantum metrology and information reconciliation protocols based on forward error correction codes. In addition, since there are circumstances when a fiber optical link may not be available, we will also discuss the problems involved with the implementation of a Free Space Optics (FSO) QKD link. The manuscript also discusses the problem of information reconciliation in CV-QKD scenarios (both on fiber and FSO links), based on an Unequal Error Protection (UEP) reverse reconciliation scheme.
Results of the NATO project: Analysis, design, and implementation of an end-to-end QKD link / Mondin, Marina; Daneshgaran, Fred; Arnon, Shlomi; Genovese, Marco; Bari, Inam; Khan, Omar U.; DI STASIO, Francesco; Kupferman, Judy; Meda, Alice; Pietro Degiovanni, Ivo; Gramegna, Marco; Khan, Maqsood; Ullah, Najeeb; Olia, Khashayar; May, Jason; Neilson, Joshua. - ELETTRONICO. - Proc. SPIE 11835, Quantum Communications and Quantum Imaging XIX, 118350O:(2021), pp. 1-7. (Intervento presentato al convegno Quantum Communications and Quantum Imaging XIX tenutosi a San Diego, CA (US) nel 1-5 August, 2021) [10.1117/12.2599822].
Results of the NATO project: Analysis, design, and implementation of an end-to-end QKD link
Marina Mondin;Francesco Di Stasio;
2021
Abstract
This manuscript discusses the most relevant aspects of the practical implementation of a long-range Quantum Key Distribution (QKD) link with trusted nodes, achieving the highest possible secret key rate generation within the security and system-level constraints. To this purpose, the implementation of an end-to-end QKD system is described, including implementation aspects from the physical transmission of photon states through a standard telecommunications grade optical fiber, to consideration of quantum metrology and information reconciliation protocols based on forward error correction codes. In addition, since there are circumstances when a fiber optical link may not be available, we will also discuss the problems involved with the implementation of a Free Space Optics (FSO) QKD link. The manuscript also discusses the problem of information reconciliation in CV-QKD scenarios (both on fiber and FSO links), based on an Unequal Error Protection (UEP) reverse reconciliation scheme.File | Dimensione | Formato | |
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https://hdl.handle.net/11583/2906314