{
  "annotation_id": "5a1238cf-984b-4e6a-aa9e-80e3bcc1be88",
  "date_created": "2026-03-02T18:02:27.647000Z",
  "date_modified": "2026-03-02T18:02:27.647000Z",
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  "record": {
    "abstract": "Some results are reviewed and developments are presented on the study of Time\nin quantum mechanics as an observable, canonically conjugate to energy.\nOperators for the observable Time are investigated in particle and photon\nquantum theory. In particular, this paper deals with the hermitian (more\nprecisely, maximal hermitian, but non-selfadjoint) operator for Time which\nappears: (i) for particles, in ordinary non-relativistic quantum mechanics; and\n(ii) for photons, in first-quantization quantum electrodynamics.",
    "arxiv_id": "quant-ph/0605069",
    "authors": [
      "V. S. Olkhovsky",
      "E. Recami"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1142/S0217751X0703724X",
    "journal_ref": "Int.J.Mod.Phys.A22:5063-5087,2007",
    "title": "Time as a quantum observable",
    "url": "https://arxiv.org/abs/quant-ph/0605069"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "da310082-c55c-46c2-b0a3-ddf97bfcb618",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}