A novel secure communication network with quantum key distribution in a metropolitan area is reported. Different QKD schemes are integrated to demonstrate secure TV conferencing over a distance of 45km, stable long-term operation, and application to secure mobile phones.
@article{arxiv.1103.3566,
title = {Field test of quantum key distribution in the Tokyo QKD Network},
author = {M. Sasaki and M. Fujiwara and H. Ishizuka and W. Klaus and K. Wakui and M. Takeoka and A. Tanaka and K. Yoshino and Y. Nambu and S. Takahashi and A. Tajima and A. Tomita and T. Domeki and T. Hasegawa and Y. Sakai and H. Kobayashi and T. Asai and K. Shimizu and T. Tokura and T. Tsurumaru and M. Matsui and T. Honjo and K. Tamaki and H. Takesue and Y. Tokura and J. F. Dynes and A. R. Dixon and A. W. Sharpe and Z. L. Yuan and A. J. Shields and S. Uchikoga and M. Legre and S. Robyr and P. Trinkler and L. Monat and J. -B. Page and G. Ribordy and A. Poppe and A. Allacher and O. Maurhart and T. Langer and M. Peev and A. Zeilinger},
journal= {arXiv preprint arXiv:1103.3566},
year = {2015}
}