{
  "annotation_id": "8d4b692b-5712-4341-a263-bba9799e124e",
  "date_created": "2026-03-02T18:01:39.318000Z",
  "date_modified": "2026-03-02T18:01:39.318000Z",
  "file_hash": "dce3c8d7ab7fa7518df6a61307beb9352aaa231c2a634fc18b75cdbb86db480d",
  "private": false,
  "record": {
    "abstract": "We investigate the entanglement properties of multiparticle systems,\nconcentrating on the case where the entanglement is robust against disposal of\nparticles. Two qubits -belonging to a multipartite system- are entangled in\nthis sense iff their reduced density matrix is entangled. We introduce a family\nof multiqubit states, for which one can choose for any pair of qubits\nindependently whether they should be entangled or not as well as the relative\nstrength of the entanglement, thus providing the possibility to construct all\nkinds of \u0027\u0027Entanglement molecules\u0027\u0027. For some particular configurations, we\nalso give the maximal amount of entanglement achievable.",
    "arxiv_id": "quant-ph/0006105",
    "authors": [
      "W. D\u00fcr"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.63.020303",
    "journal_ref": "Phys. Rev. A 63, 020303(R) (2001)",
    "title": "Entanglement molecules",
    "url": "https://arxiv.org/abs/quant-ph/0006105"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0e0b6192-5ace-4da1-9455-f5d08db36c76",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}