{
  "annotation_id": "ca4d1328-05de-4908-9ee1-24bae6f73302",
  "date_created": "2026-03-02T18:02:41.709000Z",
  "date_modified": "2026-03-02T18:02:41.709000Z",
  "file_hash": "9eb744b0c401b9720e81f088c4eed441375178d047f0efd599ae06802d72dc6c",
  "private": false,
  "record": {
    "abstract": "A non-linear quantum state transformation is presented. The transformation,\nwhich operates on pairs of spin-1/2, can be used to distinguish optimally\nbetween two non-orthogonal states. Similar transformations applied locally on\neach component of an entangled pair of spin-1/2 can be used to transform a\nmixed nonlocal state into a quasi-pure maximally entangled singlet state. In\nboth cases the transformation makes use of the basic building block of the\nquantum computer, namely the quantum-XOR gate.",
    "arxiv_id": "quant-ph/9708040",
    "authors": [
      "H. Bechmann-Pasquinucci",
      "B. Huttner",
      "N. Gisin"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/S0375-9601(98)00189-3",
    "journal_ref": "Phys.Lett. A242 (1998) 198-204",
    "title": "Nonlinear quantum state transformation of spin-1/2",
    "url": "https://arxiv.org/abs/quant-ph/9708040"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "fdf2e560-8961-4e6f-9a4f-b7ab31a5340f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}