{
  "annotation_id": "20fbc98e-4b47-43f2-b67f-b0a5eaa09a4e",
  "date_created": "2026-03-02T18:01:51.775000Z",
  "date_modified": "2026-03-02T18:01:51.775000Z",
  "file_hash": "b6f6143c1b7816d20acc354b3683744e5aa4474ee718cfa65f76b34b8ff0dc5a",
  "private": false,
  "record": {
    "abstract": "We create pairs of non-degenerate time-bin entangled photons at telecom\nwavelengths with ultra-short pump pulses. Entanglement is shown by performing\n  Bell kind tests of the Franson type with visibilities of up to 91%. As\ntime-bin entanglement can easily be protected from decoherence as encountered\nin optical fibers, this experiment opens the road for complex quantum\ncommunication protocols over long distances. We also investigate the creation\nof more than one photon pair in a laser pulse and present a simple tool to\nquantify the probability of such events to happen.",
    "arxiv_id": "quant-ph/0205144",
    "authors": [
      "Ivan Marcikic",
      "Hugues de Riedmatten",
      "Wolfgang Tittel",
      "Valerio Scarani",
      "Hugo Zbinden",
      "Nicolas Gisin"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.66.062308",
    "journal_ref": "Phys. Rev. A 66,062308 (2002)",
    "title": "Femtosecond Time-Bin Entangled Qubits for Quantum Communication",
    "url": "https://arxiv.org/abs/quant-ph/0205144"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c5e3f540-e375-48a9-9dc0-5e6316bed7cb",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}