{
  "annotation_id": "3d2290ea-d007-4d28-980c-444680b9d81f",
  "date_created": "2026-03-02T18:02:06.639000Z",
  "date_modified": "2026-03-02T18:02:06.639000Z",
  "file_hash": "85edc385f99cc69d74e82865eb80020b6b498cb9d8f20faa9874477b4efed1c4",
  "private": false,
  "record": {
    "abstract": "It is shown that Smolin four-qubit bound entangled states [Phys. Rev. A, 63\n032306 (2001)] can maximally violate two-setting Bell inequality similar to\nstandard CHSH inequality. Surprisingly this entanglement does not allow for\nsecure key distillation, so neither entanglement nor violation of Bell\ninequalities implies quantum security. It is also pointed out how that kind of\nbound entanglement can be useful in reducing communication complexity.",
    "arxiv_id": "quant-ph/0405187",
    "authors": [
      "Remigiusz Augusiak",
      "Pawel Horodecki"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.74.010305",
    "journal_ref": "Physical Review A 74, 010305(R) (2006)",
    "title": "Bound entanglement maximally violating Bell inequalities: quantum   entanglement is not equivalent to quantum security",
    "url": "https://arxiv.org/abs/quant-ph/0405187"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9b45778d-1778-403d-809e-386a482b5115",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}