Early Termination of Low-Density Parity-Check Codes for Continuous-Variable Quantum Key Distribution

Kadir Gümüş; João dos Reis Frazão; Vincent van Vliet; Menno van den Hout; Aaron Albores-Mejia; Thomas Bradley; Chigo Okonkwo

Early Termination of Low-Density Parity-Check Codes for Continuous-Variable Quantum Key Distribution

Quantum Physics 2025-07-08 v1 Information Theory math.IT

Authors: Kadir Gümüş , João dos Reis Frazão , Vincent van Vliet , Menno van den Hout , Aaron Albores-Mejia , Thomas Bradley , Chigo Okonkwo

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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.

Cite

@article{arxiv.2507.03509,
  title  = {Early Termination of Low-Density Parity-Check Codes for Continuous-Variable Quantum Key Distribution},
  author = {Kadir Gümüş and João dos Reis Frazão and Vincent van Vliet and Menno van den Hout and Aaron Albores-Mejia and Thomas Bradley and Chigo Okonkwo},
  journal= {arXiv preprint arXiv:2507.03509},
  year   = {2025}
}

Comments

Accepted for ECOC 2025

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