A Simple Approach to Error Reconciliation in Quantum Key Distribution

TL;DR

This paper analyzes a straightforward error reconciliation method in quantum key distribution where blocks with odd errors are discarded, demonstrating through simulation that the predicted performance aligns with actual results.

Contribution

It introduces and evaluates a simple error reconciliation scheme for QKD, providing predictive analysis validated by simulation.

Findings

The scheme effectively reduces errors in QKD.

Predicted performance matches simulation results.

Discarding blocks with bad parity improves key quality.

Abstract

We discuss the error reconciliation phase in quantum key distribution (QKD) and analyse a simple scheme in which blocks with bad parity (that is, blocks containing an odd number of errors) are discarded. We predict the performance of this scheme and show, using a simulation, that the prediction is accurate.