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Quantum Key Distribution over 67 km with a plug & play system

D. Stucki, N. Gisin, O. Guinnard, G. Ribordy, H. Zbinden

quant-pharXiv:quant-ph/0203118

Abstract

We present a fibre-optical quantum key distribution system. It works at 1550nm and is based on the plug & play setup. We tested the stability under field conditions using aerial and terrestrial cables and performed a key exchange over 67 km between Geneva and Lausanne.

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