{
  "annotation_id": "47f43340-7bcc-48c0-b701-837d8c2a1139",
  "date_created": "2026-03-02T18:02:06.815000Z",
  "date_modified": "2026-03-02T18:02:06.815000Z",
  "file_hash": "b9ac5f9c7db177efc4ce80a999131a766dbd688aa7c558af145d13b09433ba39",
  "private": false,
  "record": {
    "abstract": "Using spontaneous parametric down-conversion, photon pairs entangled in\nfrequency and polarization were generated. After frequency resolving the photon\npairs, the polarization correlations were measured on several polarization\nbasis, and it was confirmed that the frequency resolved photon pairs were\nentangled in polarization, indicating the photon pairs can be used as a source\nof wavelength division multiplexing quantum key distribution.",
    "arxiv_id": "quant-ph/0404024",
    "authors": [
      "Atsushi Yabushita",
      "Takayoshi Kobayashi"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Generation and characterization of a source of wavelength division   multiplexing quantum key distribution",
    "url": "https://arxiv.org/abs/quant-ph/0404024"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3f1d06bf-0d73-4fe2-83b0-975b1b66ecd7",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}