{
  "annotation_id": "3cadc1ae-7084-4f71-a2fb-4cf6f52b2574",
  "date_created": "2026-03-02T18:02:00.217000Z",
  "date_modified": "2026-03-02T18:02:00.217000Z",
  "file_hash": "4ec5f3e7159dc06887258f30dc37cb7eb1bf1310e49842504ead23faeb059f7d",
  "private": false,
  "record": {
    "abstract": "We present a first experimental test of the existence of Spontaneus\nParametric Up Conversion, predicted by a specific local realistic model based\non Wigner function formalism. The measurement has been made using a ccd camera\non the emission of a LiIO3 crystal pumped by a 351 nm and/or a 789 (1064) nm\nlasers.\n  We obtain an upper limit of 160 times on the ratio between intensity of\nSpontaneus Parametric Up Conversion and Spontaneous Parametric Down conversion.",
    "arxiv_id": "quant-ph/0307094",
    "authors": [
      "G. Brida",
      "M. Genovese",
      "M. Gramegna",
      "C. Novero"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1080/09500340308235521",
    "journal_ref": "Journ. Of Mod. Opt. 50 (2003) 1757",
    "title": "Experimental limit on Spontaneous Parametric Up Conversion",
    "url": "https://arxiv.org/abs/quant-ph/0307094"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "eca74714-9e1c-43b2-8960-3974b60659c1",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}