Early Termination of Low-Density Parity-Check Codes for Continuous-Variable Quantum Key Distribution

2025/07/04 by Kadir Gümüş, João Frazão, Gümüş, Kadir +11
Computer Science · Engineering · #Quantum Computing Algorithms and Architecture #Advancements in Semiconductor Devices and Circuit Design #Quantum Information and Cryptography

paper · pdf · doi:10.48550/arxiv.2507.03509

Abstract

We analyse the impact of log a-posteriori early termination on the decoding throughput of reconciliation for continuous-variable quantum key distribution. Increases in decoded secret key rate throughput of up to 182% are reported in both simulations and experiments

Citations

• Chip-Based 16 GBaud Continuous-Variable Quantum Key Distribution
• High-rate continuous-variable quantum key distribution over 100 km fiber with composable security
• Experimental composable key distribution using discrete-modulated continuous variable quantum cryptography
• Iteration-Dependent Scaled Min-Sum Decoding for Low-Complexity Key Reconciliation in CV-QKD
• Low Rate Protograph-Based LDPC Codes for Continuous Variable Quantum Key\n Distribution

Related

• Continuous-Variable Quantum Key Distribution with key rates far above the PLOB bound
• Information Reconciliation for Continuous-Variable Quantum Key Distribution using Non-Binary Low-Density Parity-Check Codes
• Short Blocklength Error Correction Codes for Continuous-Variable Quantum Key Distribution
• Information Reconciliation for Continuous-Variable Quantum Key Distribution with β> 1 Using Short Blocklength Error Correction Codes: Proposal and Concerns
• Efficient Reconciliation of Continuous Variable Quantum Key Distribution with Multiplicatively Repeated Non-Binary LDPC Codes