{
  "annotation_id": "98aaad41-c85f-487b-ac60-4fabc5cd5a6f",
  "date_created": "2026-03-02T18:02:44.607000Z",
  "date_modified": "2026-03-02T18:02:44.607000Z",
  "file_hash": "20e95035fcaf76ce2fc00deead30a04ccb9f35738346b0231bb7fdd0b31adb93",
  "private": false,
  "record": {
    "abstract": "The properties of the time-of-arrival operator for free motion introduced by\nAharonov and Bohm and of its self-adjoint variants are studied. The domains of\napplicability of the different approaches are clarified. It is shown that the\narrival time of the eigenstates is not sharply defined. However, strongly\npeaked real-space (normalized) wave packets constructed with narrow Gaussian\nenvelopes centred on one of the eigenstates provide an arbitrarily sharp\narrival time.",
    "arxiv_id": "quant-ph/9807066",
    "authors": [
      "J. G. Muga",
      "C. R. Leavens",
      "J. P. Palao"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.58.4336",
    "journal_ref": "Phys.Rev. A58 (1998) 1",
    "title": "Space-time properties of free motion time-of-arrival eigenstates",
    "url": "https://arxiv.org/abs/quant-ph/9807066"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d5196930-8c4a-45f7-a6ce-5427be774a66",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}