{
  "annotation_id": "0b13cd48-98a9-4023-aacc-be359cf8a88d",
  "date_created": "2026-03-02T18:02:27.172000Z",
  "date_modified": "2026-03-02T18:02:27.172000Z",
  "file_hash": "1b19525e3a363e90d68e71009cb59a6dd3d539be96a96b4d32ba464af3c74b68",
  "private": false,
  "record": {
    "abstract": "This report is about contradiction between fidelity needed to determine the\nentanglement and concomitant noise that always accompanies precise measurement.\n  Account of quantum properties of field leads to additional noise caused by\nmultiple particle creation through nonunitarity of quantum field representation\nin embedded sections of space (Unruh noise).\n  Causes of quantum noise vanish at leaving off assumption about statistical\nindependence of detectors. Smearing of detector leads to elimination of causes\nof Unruh noise and to emergence of imaginary entanglement of few mode states\ncaused by overlap of detector sections.",
    "arxiv_id": "quant-ph/0607003",
    "authors": [
      "Constantin V. Usenko"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Imaginary Entanglement as Cost of Unitarity",
    "url": "https://arxiv.org/abs/quant-ph/0607003"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f2857093-4da0-4784-9bde-9f486fdc1392",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}