{
  "annotation_id": "efa466db-8c4d-4e8b-96f5-f3f499a6724e",
  "date_created": "2026-03-02T18:02:03.356000Z",
  "date_modified": "2026-03-02T18:02:03.356000Z",
  "file_hash": "13cd019a1c88a5c7e5213a881bf7642ad3fbee657748e38124eda7f9afce04e7",
  "private": false,
  "record": {
    "abstract": "A long distance quantum teleportation experiment with a fiber-delayed Bell\nState Measurement (BSM) is reported. The source creating the qubits to be\nteleported and the source creating the necessary entangled state are connected\nto the beam splitter realizing the BSM by two 2 km long optical fibers. In\naddition, the teleported qubits are analyzed after 2,2 km of optical fiber, in\nanother lab separated by 55 m. Time bin qubits carried by photons at 1310 nm\nare teleported onto photons at 1550 nm. The fidelity is of 77%, above the\nmaximal value obtainable without entanglement. This is the first realization of\nan elementary quantum relay over significant distances, which will allow an\nincrease in the range of quantum communication and quantum key distribution.",
    "arxiv_id": "quant-ph/0309218",
    "authors": [
      "H. de Riedmatten",
      "I. Marcikic",
      "W. Tittel",
      "H. Zbinden",
      "D. Collins",
      "N. Gisin"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.92.047904",
    "journal_ref": "Phys. Rev. Lett. 92, 047904 (2004)",
    "title": "Long distance quantum teleportation in a quantum relay configuration",
    "url": "https://arxiv.org/abs/quant-ph/0309218"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f73d0ace-c8d2-4556-bec6-1d475908b4b7",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}