{
  "annotation_id": "2bd4724f-1098-4d24-b509-03b506a866b5",
  "date_created": "2026-03-02T18:02:16.219000Z",
  "date_modified": "2026-03-02T18:02:16.219000Z",
  "file_hash": "68c166f5889efd95c31f7f1db3f55d2bf5fec7fe91379f5bd3f0ff96c536e5cb",
  "private": false,
  "record": {
    "abstract": "We discuss the structure of decoherence-free subsystems for a bosonic channel\naffected by collective depolarization. A single use of the channel is defined\nas a transmission of a pair of bosonic modes. Collective depolarization\nconsists in a random linear U(2) transformation of the respective mode\noperators, which is assumed to be identical for $N$ consecutive uses of the\nchannel. We derive a recursion formula that characterizes the dimensionality of\navailable decoherence-free subsystems in such a setting.",
    "arxiv_id": "quant-ph/0506020",
    "authors": [
      "Jonathan L. Ball",
      "Konrad Banaszek"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1007/s11080-005-5723-1",
    "journal_ref": "Open Syst. Inf. Dyn. 12, 121 (2005)",
    "title": "Decoherence-free subspaces and subsystems for a collectively   depolarizing bosonic channel",
    "url": "https://arxiv.org/abs/quant-ph/0506020"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "cc400a22-a64b-4742-8505-90512d50c8bd",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}