{
  "annotation_id": "e2895526-d5f3-4ad3-98cc-11b4ebfb3454",
  "date_created": "2026-03-02T18:02:13.687000Z",
  "date_modified": "2026-03-02T18:02:13.687000Z",
  "file_hash": "4d6f1049054183b6ed27bf2ce34f80f64883bee8069834b2363450410774370e",
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  "record": {
    "abstract": "Quantum mechanics, through the Heisenberg uncertainty principle, imposes\nlimits to the precision of measurement. Conventional measurement techniques\ntypically fail to reach these limits. Conventional bounds to the precision of\nmeasurements such as the shot noise limit or the standard quantum limit are not\nas fundamental as the Heisenberg limits, and can be beaten using quantum\nstrategies that employ `quantum tricks\u0027 such as squeezing and entanglement.",
    "arxiv_id": "quant-ph/0412078",
    "authors": [
      "Vittorio Giovannetti",
      "Seth Lloyd",
      "Lorenzo Maccone"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1126/science.1104149",
    "journal_ref": "Science 306, 1330 (2004)",
    "title": "Quantum-enhanced measurements: beating the standard quantum limit",
    "url": "https://arxiv.org/abs/quant-ph/0412078"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d9f2437b-2c77-4ec5-9742-0e8d6d32fb82",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}