{
  "annotation_id": "7b780c62-9525-49bd-8b0b-bbef6c12f72f",
  "date_created": "2026-03-02T18:02:20.658000Z",
  "date_modified": "2026-03-02T18:02:20.658000Z",
  "file_hash": "34baf934a3189d97cf72d9cb1f7fd820487731f1e8b3ceefaea28c48f99c3e55",
  "private": false,
  "record": {
    "abstract": "We show that the quantum order parameters (QOP) associated with the\ntransitions between a normal conductor and a superconductor in the BCS and\neta-pairing models and between a Mott-insulator and a superfluid in the\nBose-Hubbard model are directly related to the amount of entanglement existent\nin the ground state of each system. This gives a physical meaningful\ninterpretation to these QOP, which shows the intrinsically quantum nature of\nthe phase transitions considered.",
    "arxiv_id": "quant-ph/0509049",
    "authors": [
      "Fernando Guadalupe Santos Lins Brandao"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1367-2630/7/1/254",
    "journal_ref": "New J. Phys. 7, 254 (2005)",
    "title": "Entanglement as a quantum order parameter",
    "url": "https://arxiv.org/abs/quant-ph/0509049"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "fe42a97f-dc8d-45a2-af13-5e1121e75196",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}