{
  "annotation_id": "7a1118d0-c6af-4ebe-93a3-da1cf769e18d",
  "date_created": "2026-03-02T18:02:05.877000Z",
  "date_modified": "2026-03-02T18:02:05.877000Z",
  "file_hash": "e1f69e7b4b44b8c7f56bb2268ed8471cfb0f81927dfd95bb4044ab8042d0884c",
  "private": false,
  "record": {
    "abstract": "We have demonstrated single-photon interference over 150 km using\ntime-division interferometers for quantum cryptography, which were composed of\ntwo integrated-optic asymmetric Mach-Zehnder interferometers, and balanced\ngated-mode photon detectors. The observed fringe visibility was more than 80%\nafter 150-km transmission.",
    "arxiv_id": "quant-ph/0403104",
    "authors": [
      "Tadamasa Kimura",
      "Yoshihiro Nambu",
      "Takaaki Hatanaka",
      "Akihisa Tomita",
      "Hideo Kosaka",
      "Kazuo Nakamura"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1143/JJAP.43.L1217",
    "journal_ref": "Jpn. J. Appl. Phys. Vol.43 (2004) No.9AB pp.L1217 - L1219",
    "title": "Single-photon interference over 150-km transmission using silica-based   integrated-optic interferometers for quantum cryptography",
    "url": "https://arxiv.org/abs/quant-ph/0403104"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "072aff92-508e-4b8f-b830-96c689a7213a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}