{
  "annotation_id": "ffa1ce5e-4a91-4040-92e5-d7f06248a4a1",
  "date_created": "2026-03-02T18:01:37.947000Z",
  "date_modified": "2026-03-02T18:01:37.947000Z",
  "file_hash": "be89cbb9807fe66acea306631acfd438bf12fd85b0022dd6e965d258f193b98f",
  "private": false,
  "record": {
    "abstract": "In this note we consider the problem of preparing a {\\em single} copy of an\narbitrary two-qubit mixed state $\\rho$ starting from an entangled pure state\n$\\psi$ and using only local operations assisted with classical communication.\nWe present an analytical expression for the minimal amount of pure state\nentanglement required, and describe the corresponding local strategy. We also\nexamine optimal probabilistic generalizations of the previous process.",
    "arxiv_id": "quant-ph/0003002",
    "authors": [
      "Guifr\u00e9 Vidal"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.62.062315",
    "journal_ref": "Phys. Rev. A 62, 062315 (2000)",
    "title": "Optimal local preparation of an arbitrary mixed state of two qubits.   Closed expression for the single copy case",
    "url": "https://arxiv.org/abs/quant-ph/0003002"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ebd4d5cd-a2ae-4be6-b759-34431c312fd3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}