arXiv:2409.13667
Information Reconciliation for Continuous-Variable Quantum Key Distribution with $β> 1$ Using Short Blocklength Error Correction Codes: Proposal and Concerns
Kadir Gümüş, João Frazão, Aaron Albores-Mejía, Boris Škorić, Gabriele Liga, Yunus Can Gültekin, Thomas D. Bradley, Chigo M. Okonkwo
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.