{
  "annotation_id": "ebb02c76-a988-4ac0-83c5-bb344d9d0b42",
  "date_created": "2026-03-02T18:01:42.313000Z",
  "date_modified": "2026-03-02T18:01:42.313000Z",
  "file_hash": "7d094c099eac30ce4c63075b9b1ddf6d42d6474672db0dd3681821402cf6f5c3",
  "private": false,
  "record": {
    "abstract": "A new purification scheme is proposed which applies to arbitrary dimensional\nbipartite quantum systems. It is based on the repeated application of a special\nclass of nonlinear quantum maps and a single, local unitary operation. This\nspecial class of nonlinear quantum maps is generated in a natural way by a\nhermitian generalized XOR-gate. The proposed purification scheme offers two\nmajor advantages, namely it does not require local depolarization operations at\neach step of the purification procedure and it purifies more efficiently than\nother know purification schemes.",
    "arxiv_id": "quant-ph/0102035",
    "authors": [
      "Gernot Alber",
      "Aldo Delgado",
      "Nicolas Gisin",
      "Igor Jex"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/0305-4470/34/42/307",
    "title": "Efficient bipartite quantum state purification in arbitrary dimensional   Hilbert spaces",
    "url": "https://arxiv.org/abs/quant-ph/0102035"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "cc75f75a-6263-40c9-a46b-f9de47fab4d0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}