{
  "annotation_id": "8f812313-980d-4d57-9861-824296d6e947",
  "date_created": "2026-03-02T18:02:16.748000Z",
  "date_modified": "2026-03-02T18:02:16.748000Z",
  "file_hash": "70c43b6707060da8022660b2dec839723e66e30a3e0cbaff413ea1183300e5f9",
  "private": false,
  "record": {
    "abstract": "A private shared Cartesian frame is a novel form of private shared\ncorrelation that allows for both private classical and quantum communication.\nCryptography using a private shared Cartesian frame has the remarkable property\nthat asymptotically, if perfect privacy is demanded, the private classical\ncapacity is three times the private quantum capacity. We demonstrate that if\nthe requirement for perfect privacy is relaxed, then it is possible to use the\nproperties of random subspaces to nearly triple the private quantum capacity,\nalmost closing the gap between the private classical and quantum capacities.",
    "arxiv_id": "quant-ph/0506260",
    "authors": [
      "Stephen D. Bartlett",
      "Patrick Hayden",
      "Robert W. Spekkens"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.72.052329",
    "journal_ref": "Phys. Rev. A, 72, 052329 (2005)",
    "title": "Random subspaces for encryption based on a private shared Cartesian   frame",
    "url": "https://arxiv.org/abs/quant-ph/0506260"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "82d15562-2b63-46bb-9dc9-9a16575621fd",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}