{
  "annotation_id": "44940b74-27f3-4aa6-bb6f-d010eab2867d",
  "date_created": "2026-03-02T18:02:37.567000Z",
  "date_modified": "2026-03-02T18:02:37.567000Z",
  "file_hash": "e0d63c45ce004bba3db70836b74599eda7df5c16ea6b2a09bd19ce71530a9b3d",
  "private": false,
  "record": {
    "abstract": "Quantum fluctuations impose fundamental limits on measurement and space-time\nprobing. Although using optimised probe fields can allow to push sensitivity in\na position measurement beyond the \"standard quantum limit\", quantum\nfluctuations of the probe field still result in limitations which are\ndetermined by irreducible dissipation mechanisms. Fluctuation-dissipation\nrelations in vacuum characterise the mechanical effects of radiation pressure\nvacuum fluctuations, which lead to an ultimate quantum noise for positions. For\nmacroscopic reflectors, the quantum noise on positions is dominated by\ngravitational vacuum fluctuations, and takes a universal form deduced from\nquantum fluctuations of space-time curvatures in vacuum. These can be\nconsidered as ultimate space-time fluctuations, fixing ultimate quantum limits\nin space-time measurements.",
    "arxiv_id": "quant-ph/9506007",
    "authors": [
      "Marc-Thierry Jaekel",
      "Serge Reynaud"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1355-5111/7/4/018",
    "journal_ref": "Quantum Semiclass. Opt. 7 (1995) 639",
    "title": "Quantum Limits in Space-Time Measurements",
    "url": "https://arxiv.org/abs/quant-ph/9506007"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "fe5594e2-c76c-4721-9edc-1ba0f8e561d2",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}