Automated 'plug & play' quantum key distribution

Details Automated 'plug & play' quantum key distribution Automated 'plug & play' quantum key distribution

1998-12-18

arxiv.org/abs/quant-ph/9812052v1

Electronics Letters, 29th October 1998, 34, (22), pp. 2116-2117

Physics

Quantum Physics

4 pages, 2 figures, HTML format

Scientific paper

An improved "plug & play" interferometric system for quantum key distribution is presented. Self-alignment and compensation of birefringence remain, while limitations due to reflections are overcome. Original electronics implementing the BB84 protocol makes adjustment simple. Key creation with 0.1 photon per pulse at a rate of 325 Hz with a 2.9 percent QBER - corresponding to a net rate of 210Hz - over a 23 Km installed cable was performed.

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