{
  "annotation_id": "8bceb1c3-b4be-473c-889a-b8138b70620a",
  "date_created": "2026-03-02T18:02:10.433000Z",
  "date_modified": "2026-03-02T18:02:10.433000Z",
  "file_hash": "7c961853b455c6c629835791f705f2ab2da4a988e583bbec6c56247231ca210a",
  "private": false,
  "record": {
    "abstract": "We demonstrate an efficient fiber-coupled source of nondegenerate\npolarization entangled photons at 795 and 1609 nm using bidirectionally pumped\nparametric down-conversion in bulk periodically poled lithium niobate. The\nsingle-mode source has an inferred bandwidth of 50 GHz and a spectral\nbrightness of 300 pairs/s/GHz/mW of pump power that is suitable for narrowband\napplications such as entanglement transfer from photonic to atomic qubits.",
    "arxiv_id": "quant-ph/0409162",
    "authors": [
      "Friedrich K\u00f6nig",
      "Elliott J. Mason",
      "Franco N. C. Wong",
      "Marius A. Albota"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.71.033805",
    "title": "Efficient and spectrally bright source of polarization-entangled photons",
    "url": "https://arxiv.org/abs/quant-ph/0409162"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8bde3281-6921-40ae-878b-10bda5f82ff9",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}