{
  "annotation_id": "04855409-a461-4d1c-b532-8e193788205b",
  "date_created": "2026-03-02T18:01:56.445000Z",
  "date_modified": "2026-03-02T18:01:56.445000Z",
  "file_hash": "6b020709fda177fad426da26e417e2ff47c95c297c2ef971c1eacc5e9e909739",
  "private": false,
  "record": {
    "abstract": "We demonstrate how structured decompositions of unitary operators can be\nemployed to derive control schemes for finite-level quantum systems that\nrequire only sequences of simple control pulses such as square wave pulses with\nfinite rise and decay times or Gaussian wavepackets. To illustrate the\ntechnique it is applied to find control schemes to achieve population transfers\nfor pure-state systems, complete inversions of the ensemble populations for\nmixed-state systems, create arbitrary superposition states and optimize the\nensemble average of dynamic observables.",
    "arxiv_id": "quant-ph/0211042",
    "authors": [
      "S. G. Schirmer",
      "A. D. Greentree",
      "V. Ramakrishna",
      "H. Rabitz"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/0305-4470/35/39/313",
    "journal_ref": "J. Phys. A 35, 8315--8339 (2002)",
    "title": "Constructive control of quantum systems using factorization of unitary   operators",
    "url": "https://arxiv.org/abs/quant-ph/0211042"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1ef608a9-6b82-42d6-9189-882139989564",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}