{"paper":{"title":"Field test of quantum key distribution in the Tokyo QKD Network","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. Allacher, A. J. Shields, A. Poppe, A. R. Dixon, A. Tajima, A. Tanaka, A. Tomita, A. W. Sharpe, A. Zeilinger, G. Ribordy, H. Ishizuka, H. Kobayashi, H. Takesue, J.-B. Page, J. F. Dynes, K. Shimizu, K. Tamaki, K. Wakui, K. Yoshino, L. Monat, M. Fujiwara, M. Legre, M. Matsui, M. Peev, M. Sasaki, M. Takeoka, O. Maurhart, P. Trinkler, S. Robyr, S. Takahashi, S. Uchikoga, T. Asai, T. Domeki, T. Hasegawa, T. Honjo, T. Langer, T. Tokura, T. Tsurumaru, W. Klaus, Y. Nambu, Y. Sakai, Y. Tokura, Z. L. Yuan","submitted_at":"2011-03-18T07:42:54Z","abstract_excerpt":"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."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.3566","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}