{
  "annotation_id": "e786e6ed-f19c-46cf-aaf4-80a30116e8e0",
  "date_created": "2026-03-02T18:02:48.583000Z",
  "date_modified": "2026-03-02T18:02:48.583000Z",
  "file_hash": "b8b958b4df05ab7ee5b48d238a6bb263657e43bb8c38f898716abf9e1377003f",
  "private": false,
  "record": {
    "abstract": "Even though measurement results obtained in the real world are generally both\nnoisy and continuous, quantum measurement theory tends to emphasize the ideal\nlimit of perfect precision and quantized measurement results. In this article,\na more general concept of noisy measurements is applied to investigate the role\nof quantum noise in the measurement process. In particular, it is shown that\nthe effects of quantum noise can be separated from the effects of information\nobtained in the measurement. However, quantum noise is required to ``cover up\u0027\u0027\nnegative probabilities arising as the quantum limit is approached. These\nnegative probabilities represent fundamental quantum mechanical correlations\nbetween the measured variable and the variables affected by quantum noise.",
    "arxiv_id": "quant-ph/9907018",
    "authors": [
      "Holger F. Hofmann"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.62.022103",
    "journal_ref": "Phys.Rev.A62:022103,2000",
    "title": "Information and noise in quantum measurement",
    "url": "https://arxiv.org/abs/quant-ph/9907018"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7f36ea9a-f6b4-4f32-8817-29b67340f795",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}