{
  "annotation_id": "7e91d324-dd3f-4ac2-a4e7-a8d21dd49169",
  "date_created": "2026-03-02T18:02:02.268000Z",
  "date_modified": "2026-03-02T18:02:02.268000Z",
  "file_hash": "b8ed84e0287b2b96f1c2703626e4080bc4b565070fbc3ac14e65de138dc483c9",
  "private": false,
  "record": {
    "abstract": "A general description of entanglement is suggested as an action realized by\nan arbitrary operator over given disentangled states. The related entanglement\nmeasure is defined. Because of its generality, this definition can be employed\nfor any physical systems, pure or mixed, equilibrium or nonequilibrium, and\ncharacterized by any type of operators, whether these are statistical\noperators, field operators, spin operators, or anything else. Entanglement of\nany number of parts from their total ensemble forming a multiparticle composite\nsystem can be determined. Interplay between entanglement and ordering,\noccurring under phase transitions, is analysed by invoking the concept of\noperator order indices.",
    "arxiv_id": "quant-ph/0309015",
    "authors": [
      "V. I. Yukalov"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.stat-mech"
    ],
    "doi": "10.1103/PhysRevLett.90.167905",
    "journal_ref": "Phys. Rev. Lett. 90 (2003) 167905-4",
    "title": "Entanglement Measure for Composite Systems",
    "url": "https://arxiv.org/abs/quant-ph/0309015"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b4540b49-eb4e-4bae-8cba-a13bdd4d4f5f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}