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