{
  "annotation_id": "8c4be229-234e-45d0-a1be-bc5a9e0cde03",
  "date_created": "2026-03-02T18:02:10.385000Z",
  "date_modified": "2026-03-02T18:02:10.385000Z",
  "file_hash": "d275c7a1d03156165ff46cee03901f4a75acbe377ebdb372f95f5438b63c1310",
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  "record": {
    "abstract": "We show that any arbitrary time-dependent density operator of an open system\ncan always be described in terms of an operator-sum representation regardless\nof its initial condition and the path of its evolution in the state space, and\nwe provide a general expression of Kraus operators for arbitrary time-dependent\ndensity operator of an $N$-dimensional system. Moreover, applications of our\nresult are illustrated through several examples.",
    "arxiv_id": "quant-ph/0407111",
    "authors": [
      "D. M. Tong",
      "L. C. Kwek",
      "C. H. Oh",
      "Jing-Ling Chen",
      "L. Ma"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.69.054102",
    "journal_ref": "Physical Review A 69, 054102 (2004)",
    "title": "Operator-sum representation of time-dependent density operators and its   applications",
    "url": "https://arxiv.org/abs/quant-ph/0407111"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2e4f697f-6b85-401b-b7c7-2b64e120bb0f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}