{
  "annotation_id": "76170af9-8f80-4f81-9bce-b5c6ef731000",
  "date_created": "2026-03-02T18:02:10.296000Z",
  "date_modified": "2026-03-02T18:02:10.296000Z",
  "file_hash": "bfb26e3e2020df7029697ea7f62fae16c55e9e80674fe11630403224117af097",
  "private": false,
  "record": {
    "abstract": "We discuss the problem of determining whether the state of several quantum\nmechanical subsystems is entangled. As in previous work on two subsystems we\nintroduce a procedure for checking separability that is based on finding state\nextensions with appropriate properties and may be implemented as a semidefinite\nprogram. The main result of this work is to show that there is a series of\ntests of this kind such that if a multiparty state is entangled this will\neventually be detected by one of the tests. The procedure also provides a means\nof constructing entanglement witnesses that could in principle be measured in\norder to demonstrate that the state is entangled.",
    "arxiv_id": "quant-ph/0407143",
    "authors": [
      "Andrew C. Doherty",
      "Pablo A. Parrilo",
      "Federico M. Spedalieri"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.71.032333",
    "journal_ref": "Phys. Rev. A, Vol. 71, 032333 (2005)",
    "title": "Detecting multipartite entanglement",
    "url": "https://arxiv.org/abs/quant-ph/0407143"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "243f34da-8762-4771-98ac-5b3a7ec313e2",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}