{
  "annotation_id": "b3a454a3-29b4-4d4c-8bb6-6e6e7de117d9",
  "date_created": "2026-03-02T18:02:09.947000Z",
  "date_modified": "2026-03-02T18:02:09.947000Z",
  "file_hash": "5ffd915c650d2d5df3dcf5d2a151136aebb393bb0c5fda08e1fb5a7751e426f4",
  "private": false,
  "record": {
    "abstract": "The key realisation which lead to the emergence of the new field of quantum\ninformation processing is that quantum mechanics, the theory that describes\nmicroscopic particles, allows the processing of information in fundamentally\nnew ways. But just as in classical information processing, errors occur in\nquantum information processing, and these have to be corrected. A fundamental\nbreakthrough was the realisation that quantum error correction is in fact\npossible. However most work so far has not been concerned with technological\nfeasibility, but rather with proving that quantum error correction is possible\nin principle. Here we describe a method for filtering out errors and\nentanglement purification which is particularly suitable for quantum\ncommunication. Our method is conceptually new, and, crucially, it is easy to\nimplement in a wide variety of physical systems with present day technology and\nshould therefore be of wide applicability.",
    "arxiv_id": "quant-ph/0407021",
    "authors": [
      "N. Gisin",
      "N. Linden",
      "S. Massar",
      "S. Popescu"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.72.012338",
    "journal_ref": "Phys. Rev. A 72, 012338 (2005)",
    "title": "Error Filtration and Entanglement Purification for Quantum Communication",
    "url": "https://arxiv.org/abs/quant-ph/0407021"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9c03eca6-dde6-40b1-84bb-f2764b3590c1",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}