English

Information Reconciliation for Continuous-Variable Quantum Key Distribution with $\beta > 1$ Using Short Blocklength Error Correction Codes: Proposal and Concerns

Quantum Physics 2026-02-05 v2

Abstract

In this paper, we introduce a reconciliation protocol with a two-step error correction scheme that uses a short-blocklength, low-rate code and a long-blocklength, high-rate code. We simulate the protocol using a short-block-length low-density parity-check code and show that we can achieve reconciliation efficiencies above 1 using this method. We discuss the necessary steps required regarding security proofs before this protocol can be securely implemented.

Keywords

Cite

@article{arxiv.2409.13667,
  title  = {Information Reconciliation for Continuous-Variable Quantum Key Distribution with $\beta > 1$ Using Short Blocklength Error Correction Codes: Proposal and Concerns},
  author = {Kadir Gümüş and João dos Reis Frazão and Aaron Albores-Mejia and Boris Škorić and Gabriele Liga and Yunus Can Gültekin and Thomas Bradley and Chigo Okonkwo},
  journal= {arXiv preprint arXiv:2409.13667},
  year   = {2026}
}

Comments

Correction of previous version

R2 v1 2026-06-28T18:51:39.218Z