{
  "annotation_id": "d1a6a686-89f7-4b57-91ad-9b3748dfc429",
  "date_created": "2026-03-02T18:02:31.093000Z",
  "date_modified": "2026-03-02T18:02:31.093000Z",
  "file_hash": "628554622feee025fe73dc9bfc434dc353d6328cad0aa89dbb1ca4bff8c834ec",
  "private": false,
  "record": {
    "abstract": "We use Robust Semidefinite Programs and Entanglement Witnesses to study the\ndistillability of Werner states. We perform exact numerical calculations which\nshow 2-undistillability in a region of the state space which was previously\nconjectured to be undistillable. We also introduce bases which yield\ninteresting expressions for the {\\em distillability witnesses} and for a tensor\nproduct of Werner states with arbitrary number of copies.",
    "arxiv_id": "quant-ph/0608095",
    "authors": [
      "Reinaldo O. Vianna",
      "Andrew C. Doherty"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.74.052306",
    "journal_ref": "Physical Review A, 74, 052306 (2006)",
    "title": "Study of the Distillability of Werner States Using Entanglement   Witnesses and Robust Semidefinite Programs",
    "url": "https://arxiv.org/abs/quant-ph/0608095"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ae3a0200-6020-4987-84d2-63072121476f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}