{
  "annotation_id": "dd33e5b9-4944-4ee9-ae9d-44ff0e6946bc",
  "date_created": "2026-03-02T18:02:31.187000Z",
  "date_modified": "2026-03-02T18:02:31.187000Z",
  "file_hash": "900a9510cbfa54298fd0864a5007db69da0fa9d79a3466771bffeb0c1190ce54",
  "private": false,
  "record": {
    "abstract": "The maximal amount of information which is reliably transmitted over two uses\nof general Pauli channels with memory is proven to be achieved by maximally\nentangled states beyond some memory threshold. In particular, this proves a\nconjecture on the depolarizing channel by Macchiavello and Palma [Phys. Rev. A\n{\\bf 65}, 050301(R) (2002)]. Below the memory threshold, for arbitrary Pauli\nchannels, the two-use classical capacity is only achieved by a particular type\nof product states.",
    "arxiv_id": "quant-ph/0610165",
    "authors": [
      "D. Daems"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.76.012310",
    "journal_ref": "Phys. Rev. A 76, 012310 (2007)",
    "title": "Entanglement-enhanced classical capacity of two-qubit quantum channels   with memory: the exact solution",
    "url": "https://arxiv.org/abs/quant-ph/0610165"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6c7aafd0-c11b-47df-b41f-4a6af9cb1b31",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}