High Bit Rate Continuous-Variable Quantum Key Distribution

Abstract

Here, we demonstrate that a practical Continuous Variables Quantum Key Distribution (CVQKD) protocol relying on the Gaussian modulation of coherent states features secret key rates that cannot be achieved with standard qubit Discrete Variables (DV) QKD protocols. Notably, we report for the first time a practical postprocessing that allows to extract more than one bit of secret key per channel use.

9 pages, 12 figures, 2 tables, v2 includes secret key rate simulations with the composable security proof of arXiv:1408.5689

References in corpus (5)

• Unconditional optimality of Gaussian attacks against continuous-variable QKD
• Quantum key distribution over 25 km with an all-fiber continuous-variable system
• Optimality of Gaussian Attacks in Continuous Variable Quantum Cryptography
• Finite-size analysis of continuous-variable quantum key distribution
• Multidimensional reconciliation for continuous-variable quantum key distribution

Cited by in corpus (2)

• Composable security proof for continuous-variable quantum key distribution with coherent states
• Robust Shot Noise Measurement for Continuous Variable Quantum Key Distribution