Field test of quantum key distribution in the Tokyo QKD Network

Sasaki, M., Fujiwara, M., Ishizuka, H., Klaus, W., Wakui, K., Takeoka, M., Miki, S., Yamashita, T., Wang, Z., Tanaka, A., Yoshino, K., Nambu, Y., Takahashi, S., Tajima, A., Tomita, A., Domeki, T., Hasegawa, T., Sakai, Y., Kobayashi, H., Asai, T., Shimizu, K., Tokura, T., Tsurumaru, T., Matsui, M., Honjo, T., Tamaki, K., Takesue, H., Tokura, Y., Dynes, J. F., Dixon, A. R., Sharpe, A. W., Yuan, Z. L., Shields, A. J., Uchikoga, S., Legré, M., Robyr, S., Trinkler, P., Monat, L., Page, J.-B., Ribordy, G., Poppe, A., Allacher, A., Maurhart, O., Länger, T., Peev, M., Zeilinger, A.

doi:10.48550/arxiv.1103.3566

Description

A secure communication network with quantum key distribution in a metropolitan area is reported. Six different QKD systems are integrated into a mesh-type network. GHz-clocked QKD links enable us to demonstrate the world-first secure TV conferencing over a distance of 45km. The network includes a commercial QKD product for long-term stable operation, and application interface to secure mobile phones. Detection of an eavesdropper, rerouting into a secure path, and key relay via trusted nodes are demonstrated in this network.

Journal

Optics Express

Optics Express 19 (11), 10387-10409, 2011-05-23

Optical Society of America

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CRID: 1050282677904087552

NII Article ID: 20000772604

DOI: 10.1364/oe.19.010387; 10.48550/arxiv.1103.3566

ISSN: 10944087

HANDLE: 2115/47440

PubMed: 21643295

Web Site: https://www.osapublishing.org/viewmedia.cfm?URI=oe-19-11-10387&seq=0

Text Lang: en

Article Type: journal article

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Field test of quantum key distribution in the Tokyo QKD Network

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