{
  "annotation_id": "004044b8-5039-4d9c-8697-8d1d7009132a",
  "date_created": "2026-03-02T18:01:52.425000Z",
  "date_modified": "2026-03-02T18:01:52.425000Z",
  "file_hash": "92f82ee19e9e180d1d43bc6a79e40994f0df3bcedce31a577a7d22e68825647c",
  "private": false,
  "record": {
    "abstract": "Dissipation and decoherence, and the evolution from pure to mixed states in\nquantum physics are handled through master equations for the density matrix. By\nembedding elements of this matrix in a higher-dimensional Liouville-Bloch\nequation, the methods of unitary integration are adapted to solve for the\ndensity matrix as a function of time, including the non-unitary effects of\ndissipation and decoherence. The input requires only solutions of classical,\ninitial value time-dependent equations. Results are illustrated for a damped\ndriven two-level system.",
    "arxiv_id": "quant-ph/0205113",
    "authors": [
      "A. R. P. Rau",
      "R. A. Wendell"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.89.220405",
    "journal_ref": "Phys. Rev. Lett. 89, 220405 (2002)",
    "title": "Embedding dissipation and decoherence in unitary evolution schemes",
    "url": "https://arxiv.org/abs/quant-ph/0205113"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "eea68153-2933-44a4-863f-023c18211f16",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}