{
  "annotation_id": "7da8c79c-2261-4b49-84d0-e1d84b9cf362",
  "date_created": "2026-03-02T18:01:45.785000Z",
  "date_modified": "2026-03-02T18:01:45.785000Z",
  "file_hash": "29f1a964f8f1b554708f7b41cfa755c6c05ed62d6d80eb5b969ae68aec4efc44",
  "private": false,
  "record": {
    "abstract": "We present a scheme to store unitary operators with self-inverse generators\nin quantum states and a general circuit to retrieve them with definite success\nprobability. The continuous variable of the operator is stored in a\nsingle-qubit state and the information about the kind of the operator is stored\nin classical states with finite dimension. The probability of successful\nretrieval is always 1/2 irrespective of the kind of the operator, which is\nproved to be maximum. In case of failure, the result can be corrected with\nadditional quantum states. The retrieving circuit is almost as simple as that\nwhich handles only the single-qubit rotations and CNOT as the basic operations.\nAn interactive way to transfer quantum dynamics, that is, to distribute\nnaturally copy-protected programs for quantum computers is also presented using\nthis scheme.",
    "arxiv_id": "quant-ph/0109097",
    "authors": [
      "Jaehyun Kim",
      "Yongwook Cheong",
      "Jae-Seung Lee",
      "Soonchil Lee"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.65.012302",
    "journal_ref": "Physical Review A 65, 012302 (2002)",
    "title": "Storing unitary operators in quantum states",
    "url": "https://arxiv.org/abs/quant-ph/0109097"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "605f1e80-5055-4ab8-89f6-94ac03216d15",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}