{
  "annotation_id": "0c2fd685-39e0-4112-befc-2e9ca5f6e650",
  "date_created": "2026-03-02T18:01:53.050000Z",
  "date_modified": "2026-03-02T18:01:53.050000Z",
  "file_hash": "b8db2bd8dd76bcd160783669b7ef5f01faaac7d825cc3a94d0c93c6b237da7a8",
  "private": false,
  "record": {
    "abstract": "We consider how much entanglement can be produced by a non-local two-qubit\nunitary operation, $U_{AB}$ - the entangling capacity of $U_{AB}$. For a single\napplication of $U_{AB}$, with no ancillas, we find the entangling capacity and\nshow that it generally helps to act with $U_{AB}$ on an entangled state.\nAllowing ancillas, we present numerical results from which we can conclude,\nquite generally, that allowing initial entanglement typically increases the\noptimal capacity in this case as well. Next, we show that allowing collective\nprocessing does not increase the entangling capacity if initial entanglement is\nallowed.",
    "arxiv_id": "quant-ph/0205055",
    "authors": [
      "M. S. Leifer",
      "L. Henderson",
      "N. Linden"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.67.012306",
    "journal_ref": "Physical Review A 67:012306 (2003)",
    "title": "Optimal Entanglement Generation from Quantum Operations",
    "url": "https://arxiv.org/abs/quant-ph/0205055"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0f747de0-c675-4590-9646-a4cb6541324e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}