{
  "annotation_id": "34f3609c-696f-45f5-ae40-5d4a6f765a2e",
  "date_created": "2026-03-02T18:01:59.604000Z",
  "date_modified": "2026-03-02T18:01:59.604000Z",
  "file_hash": "a6636f429cc8946d74203e1618c0e949c121c58397bc7cded47f326a9f9b8120",
  "private": false,
  "record": {
    "abstract": "We present a method of determining important properties of a shared bipartite\nquantum state, within the ``distant labs\u0027\u0027 paradigm, using \\emph{only} local\noperations and classical communication (LOCC). We apply this procedure to\nspectrum estimation of shared states, and locally implementable structural\nphysical approximations to incompletely positive maps. This procedure can also\nbe applied to the estimation of channel capacity and measures of entanglement.",
    "arxiv_id": "quant-ph/0304123",
    "authors": [
      "Carolina Moura Alves",
      "Pawel Horodecki",
      "Daniel K. L. Oi",
      "L. C. Kwek",
      "Artur K. Ekert"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Direct estimation of functionals of density operators by local   operations and classical communication",
    "url": "https://arxiv.org/abs/quant-ph/0304123"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "62b7251e-2595-4bc0-8f92-dfaf8aace059",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}