{
  "annotation_id": "df257669-ab29-42ef-9665-9ddc6bb2feaa",
  "date_created": "2026-03-02T18:02:48.371000Z",
  "date_modified": "2026-03-02T18:02:48.371000Z",
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  "record": {
    "abstract": "The measuring process is an external intervention in the dynamics of a\nquantum system. It involves a unitary interaction of that system with a\nmeasuring apparatus, a further interaction of both with an unknown environment\ncausing decoherence, and then the deletion of a subsystem. This description of\nthe measuring process is a substantial generalization of current models in\nquantum measurement theory. In particular, no ancilla is needed. The final\nresult is represented by a completely positive map of the quantum state $\\rho$\n(possibly with a change of the dimensions of $\\rho$). A continuous limit of the\nabove process leads to Lindblad\u0027s equation for the quantum dynamical semigroup.",
    "arxiv_id": "quant-ph/9906023",
    "authors": [
      "Asher Peres"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.61.022116",
    "journal_ref": "Physical Review A 61 (2000) 022116",
    "title": "Classical interventions in quantum systems. I. The measuring process",
    "url": "https://arxiv.org/abs/quant-ph/9906023"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "905861b7-2ee1-4a48-a39b-4c4852015983",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}