{
  "annotation_id": "39b59e3b-1389-402e-9325-7e65e766a92b",
  "date_created": "2026-03-02T18:01:46.181000Z",
  "date_modified": "2026-03-02T18:01:46.181000Z",
  "file_hash": "8c3de6a68d8798c47331b9bd1b5dc0908c896489dd020fe017d02195e8345eb4",
  "private": false,
  "record": {
    "abstract": "We investigate several classes of state-dependent quantum cloners for\nthree-level systems. These cloners optimally duplicate some of the four\nmaximally-conjugate bases with an equal fidelity, thereby extending the\nphase-covariant qubit cloner to qutrits. Three distinct classes of qutrit\ncloners can be distinguished, depending on two, three, or four\nmaximally-conjugate bases are cloned as well (the latter case simply\ncorresponds to the universal qutrit cloner). These results apply to symmetric\nas well as asymmetric cloners, so that the balance between the fidelity of the\ntwo clones can also be analyzed.",
    "arxiv_id": "quant-ph/0110092",
    "authors": [
      "Nicolas J. Cerf",
      "Thomas Durt",
      "Nicolas Gisin"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1080/09500340110109043",
    "journal_ref": "J. Mod. Opt. 49, 1355-1373 (2002)",
    "title": "Cloning a Qutrit",
    "url": "https://arxiv.org/abs/quant-ph/0110092"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6ce8439c-b503-49eb-accc-e6e3d1dad9bf",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}