{
  "annotation_id": "360c591b-f872-4bd0-a43e-6cf317393102",
  "date_created": "2026-03-02T18:01:52.881000Z",
  "date_modified": "2026-03-02T18:01:52.881000Z",
  "file_hash": "bb965c106994febdf015f4c64ab8b854357263dc94507aa8de4021c90628c8eb",
  "private": false,
  "record": {
    "abstract": "Entanglement shared between the two ends of a quantum communication channel\nhas been shown to be a useful resource in increasing both the quantum and\nclassical capacities for these channels. The entanglement-assisted capacities\nwere derived assuming an unlimited amount of shared entanglement per channel\nuse. In this paper, bounds are derived on the minimum amount of entanglement\nrequired per use of a channel, in order to asymptotically achieve the capacity.\nThis is achieved by introducing a class of entanglement-assisted quantum codes.\nCodes for classes of qubit channels are shown to achieve the quantum\nentanglement-assisted channel capacity when an amount of shared entanglement\nper channel given by, E = 1 - Q_E, is provided. It is also shown that for very\nnoisy channels, as the capacities become small, the amount of required\nentanglement converges for the classical and quantum capacities.",
    "arxiv_id": "quant-ph/0205117",
    "authors": [
      "Garry Bowen"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.66.052313",
    "journal_ref": "Phys. Rev. A 66, 052313 (2002)",
    "title": "Entanglement required in achieving entanglement-assisted channel   capacities",
    "url": "https://arxiv.org/abs/quant-ph/0205117"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "075056e5-9f11-4676-b372-11a0527358d9",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}