Early Termination of Low-Density Parity-Check Codes for Continuous-Variable Quantum Key Distribution
Kadir G\"um\"u\c{s}, Jo\~ao dos Reis Fraz\~ao, Vincent van Vliet, Menno van den Hout, Aaron Albores-Mejia, Thomas Bradley, and Chigo Okonkwo
TL;DR
This paper investigates how early termination in decoding algorithms can significantly enhance the throughput of reconciliation in continuous-variable quantum key distribution, achieving up to 182% improvement in secret key rate.
Contribution
It introduces and analyzes the use of log a-posteriori early termination to improve decoding throughput in CV-QKD reconciliation.
Findings
Up to 182% increase in secret key rate throughput.
Effective in both simulations and experimental setups.
Abstract
We analyse the impact of log a-posteriori early termination on the decoding throughput of reconciliation for continuous-variable quantum key distribution. Increases in decoded secret key rate throughput of up to 182% are reported in both simulations and experiments.
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