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Quantum Information Processing
Erschienen in: Quantum Information Processing 1/2019

01.01.2019

An improved multidimensional reconciliation algorithm for continuous-variable quantum key distribution

verfasst von: Qiong Li, Xuan Wen, Haokun Mao, Xiaojun Wen

Erschienen in: Quantum Information Processing | Ausgabe 1/2019

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Abstract

Reconciliation is a crucial procedure for continuous-variable quantum key distribution (CV-QKD) systems since it directly affects the performance of practical system including processing speed, secret key rate, and maximal transmission distance. In this paper, we proposed a novel initial decoding message computation method for multidimensional reconciliation with low density parity check code, which does not need the norm information from the encoder. Both theoretical analysis and simulation results demonstrate that the improved scheme can greatly decrease the communication traffic and storage resource consumption of the reconciliation procedure almost without degradation in the reconciliation efficiency. What is more, the improved scheme can decrease the secure key consumption for classical channel authentication, then increase the secure key rate, and also be conducive to the realization of high-speed CV-QKD systems.
Vorheriger Artikel Secure quantum network coding based on quantum homomorphic message authentication
Nächster Artikel Any quantum network is structurally controllable by a single driving signal

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Metadaten
Titel
An improved multidimensional reconciliation algorithm for continuous-variable quantum key distribution
verfasst von
Qiong Li
Xuan Wen
Haokun Mao
Xiaojun Wen
Publikationsdatum
01.01.2019
Verlag
Springer US
Erschienen in
Quantum Information Processing / Ausgabe 1/2019
Print ISSN: 1570-0755
Elektronische ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-018-2126-0

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