We have experimentally demonstrated a decoy-state quantum key distribution scheme with a heralded single-photon source based on parametric down-conversion. What we used is a one-way BB84 protocol with a four-state and one-detector phase-coding scheme.
© 2008 Optical Society of America
Q. Wang, W. Chen, G. Xavier, M. Swillo, S. Sauge, M. Tengner, T. Zhang, Z. Han, G. Guo, and A. Karlsson, "Robust Decoy-State Quantum Key Distribution with Heralded Single Photon Source," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest (CD) (Optical Society of America, 2008), paper QWB7.
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