{
  "annotation_id": "0a17ca50-9163-4bb8-b381-8a78773ea260",
  "date_created": "2026-03-02T18:02:37.433000Z",
  "date_modified": "2026-03-02T18:02:37.433000Z",
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  "record": {
    "abstract": "A suitable operator for the time-of-arrival at a detector is defined for the\nfree relativistic particle in 3+1 dimensions. For each detector position, there\nexists a subspace of detected states in the Hilbert space of solutions to the\nKlein Gordon equation. Orthogonality and completeness of the eigenfunctions of\nthe time-of-arrival operator apply inside this subspace, opening up a standard\nprobabilistic interpretation.",
    "arxiv_id": "quant-ph/9608013",
    "authors": [
      "J. Leon"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/0305-4470/30/13/027",
    "journal_ref": "J.Phys.A30:4791-4802,1997",
    "title": "Time-of-arrival formalism for the relativistic particle",
    "url": "https://arxiv.org/abs/quant-ph/9608013"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2bc4f01a-8e5c-46ac-a1e1-3d13b26c0a2e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}