{
  "annotation_id": "033df589-c7aa-4dd3-96d8-518686bd036d",
  "date_created": "2026-03-02T18:01:52.233000Z",
  "date_modified": "2026-03-02T18:01:52.233000Z",
  "file_hash": "50cee86a7e300b95490590d81ce40d28e3a6440e5eb85806ac6d705c5fc58a59",
  "private": false,
  "record": {
    "abstract": "Bipartite operations underpin both classical communication and entanglement\ngeneration. Using a superposition of classical messages, we show that the\ncapacity of a two-qubit operation for error-free entanglement-assisted\nbidirectional classical communication can not exceed twice the entanglement\ncapability. In addition we show that any bipartite two-qubit operation can\nincrease the communication that may be performed using an ensemble by twice the\nentanglement capability.",
    "arxiv_id": "quant-ph/0205181",
    "authors": [
      "Dominic W. Berry",
      "Barry C. Sanders"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.67.040302",
    "journal_ref": "Phys. Rev. A. 67, 040302(R) (2003)",
    "title": "Relations for classical communication capacity and entanglement   capability of two-qubit operations",
    "url": "https://arxiv.org/abs/quant-ph/0205181"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c1b68dba-3440-4675-af68-b8c57010164a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}