{
  "annotation_id": "1b58cd9a-8056-4d21-b5af-728e3c2e9222",
  "date_created": "2026-03-02T18:01:38.728000Z",
  "date_modified": "2026-03-02T18:01:38.728000Z",
  "file_hash": "64ce9233ffa1e0ed5c370dfdc76fddd55949c37b9c24472c6c1849e3ac608316",
  "private": false,
  "record": {
    "abstract": "Finite resolution quantum nondemolition (QND) measurements allow a\ndetermination of light field properties while preserving some of the original\nquantum coherence of the input state. It is thus possible to measure\ncorrelations between the photon number and a quadrature component of the same\nlight field mode. Nonclassical features emerge as photon number quantization is\nresolved. In particular, a strong anti-correlation of quantization and\ncoherence is observable in QND measurements of photon number, and a correlation\nbetween measurement induced quantum jumps and quadrature component measurement\nresults is obtained in QND measurements of quadrature fluctuations in the\nphoton vacuum. Such nonclassical correlations represent fundamental quantum\nproperties of the light field and may provide new insights into the nature of\nquantization itself.",
    "arxiv_id": "quant-ph/0004073",
    "authors": [
      "Holger F. Hofmann"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Nonclassical correlations between photon number and quadrature   components of the light field",
    "url": "https://arxiv.org/abs/quant-ph/0004073"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2431db17-a0df-4aba-ba11-6b643b190e35",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}