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2008

Quantum key distribution system using dual-threshold homodyne detection

8 years 3 months ago
Quantum key distribution system using dual-threshold homodyne detection
In this work we present the principles of a flexible quantum key distribution (QKD) system using quadraturephase-shift-keying (QPSK) base and symbol encoding and dualthreshold balanced homodyne detection (BHD) scheme. We give its security proofs and we compare its performance experimentally with a photon counting detection scheme. Keywords- quantum key distribution, quantum cryptography, balanced homodyne detection, QPSK modulation, BB84 protocol, photon counting, phase shift keying, unconditional security
Qing Xu 0006, Manuel Sabban, Philippe Gallion, Fra
Added 30 Oct 2010
Updated 30 Oct 2010
Type Conference
Year 2008
Where RIVF
Authors Qing Xu 0006, Manuel Sabban, Philippe Gallion, Francisco Mendieta
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