{
  "annotation_id": "d3da7966-dae7-4882-9a5b-03622593908a",
  "date_created": "2026-03-02T18:02:40.446000Z",
  "date_modified": "2026-03-02T18:02:40.446000Z",
  "file_hash": "d600946c66d2e52a2cbbcd8e6e79d2c8317224019b6710576c4810ae68b7f5bf",
  "private": false,
  "record": {
    "abstract": "This paper gives a representation of the most general positive operator\nvalued measure in Minkowski space-time, covariant with respect to the Poincare\u0027\ngroup. It provides the correct mathematical description of the space-time\ncoordinates of a quantum event, described by a quantum object with suitable\nproperties. It is known that these coordinates cannot be represented by\nself-adjoint operators or by the corresponding projection valued measure.",
    "arxiv_id": "quant-ph/9702060",
    "authors": [
      "M. Toller"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "On the Quantum Space-Time Coordinates of an Event",
    "url": "https://arxiv.org/abs/quant-ph/9702060"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9b416b9f-3227-4158-8dff-2a750c4737cf",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}