Decoy-state quantum key distribution using homodyne detection

Journal Article · Wed Jul 15 04:00:00 EDT 2009 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.80.012327· OSTI ID:21313237

Shams Mousavi, S H ^[1]; Gallion, P ^[2]

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1. Ecole Superieure d'Electricite (Supelec), Photonic and Communication Systems, 2 rue Edouard Belin, 57070 Metz (France)
2. TELECOM ParisTech, Ecole Nationale Superieure des Telecommunications, CNRS LTCI UMR 5141, 46 rue Barrault, 75013 Paris (France)

In this paper, we propose to use the decoy-state technique to improve the security of the quantum key distribution (QKD) systems based on homodyne detection against the photon number splitting attack. The decoy-state technique is a powerful tool that can significantly boost the secure transmission range of the QKD systems. However, it has not yet been applied to the systems that use homodyne detection. After adapting this theory to the systems based on homodyne detection, we quantify the secure performance and transmission range of the resulting system.

• OSTI ID: 21313237
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 80; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DETECTION
DISTRIBUTION
PERFORMANCE
PHOTONS
QUANTUM CRYPTOGRAPHY
SECURITY
TRANSMISSION