Fast and long-distance differential-phase-shift quantum key distribution
Eleni Diamanti, Carsten Langrock, Edo Waks, M. M. Fejer, Y. Yamamoto, Hiroki Takesue, Toshimori Honjo, Kyo Inoue · 2006
A differential-phase-shift quantum key distribution experiment employing up-conversion single-photon detectors is presented. We achieved a 1-Mbit/s sifted key rate over a 20-km optical fiber, and distributed keys secure against general individual attacks over 75 km.