Information Reconciliation for Continuous-Variable Quantum Key Distribution using Non-Binary Low-Density Parity-Check Codes
February 29, 2016 Β· Declared Dead Β· π arXiv.org
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Authors
Christoph Pacher, Jesus Martinez-Mateo, JΓΆrg Duhme, Tobias Gehring, Fabian Furrer
arXiv ID
1602.09140
Category
quant-ph: Quantum Computing
Cross-listed
cs.IT
Citations
13
Venue
arXiv.org
Last Checked
5 months ago
Abstract
An information reconciliation method for continuous-variable quantum key distribution with Gaussian modulation that is based on non-binary low-density parity-check (LDPC) codes is presented. Sets of regular and irregular LDPC codes with different code rates over the Galois fields $GF(8)$, $GF(16)$, $GF(32)$, and $GF(64)$ have been constructed. We have performed simulations to analyze the efficiency and the frame error rate using the sum-product algorithm. The proposed method achieves an efficiency between $0.94$ and $0.98$ if the signal-to-noise ratio is between $4$ dB and $24$ dB.
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