{
  "annotation_id": "793413c5-4299-4346-99db-d4dbf16691af",
  "date_created": "2026-03-02T18:02:44.653000Z",
  "date_modified": "2026-03-02T18:02:44.653000Z",
  "file_hash": "26cb6f6cc7d7dc7be56fdc98a14bea4cbf76f07632ee6aa25d2d7865aa89318b",
  "private": false,
  "record": {
    "abstract": "We characterize good clocks, which are naturally subject to fluctuations, in\nstatistical terms. We also obtain the master equation that governs the\nevolution of quantum systems according to these clocks and find its general\nsolution. This master equation is diffusive and produces loss of coherence.\nMoreover, real clocks can be described in terms of effective interactions that\nare nonlocal in time. Alternatively, they can be modeled by an effective\nthermal bath coupled to the system.",
    "arxiv_id": "quant-ph/9811009",
    "authors": [
      "Inigo L. Egusquiza",
      "Luis J. Garay",
      "Jose M. Raya"
    ],
    "categories": [
      "quant-ph",
      "gr-qc"
    ],
    "doi": "10.1103/PhysRevA.59.3236",
    "journal_ref": "Phys.Rev. A59 (1999) 3236-3240",
    "title": "Quantum evolution according to real clocks",
    "url": "https://arxiv.org/abs/quant-ph/9811009"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "08c75779-1108-403d-bb4c-35838c3b6e5a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}