{
  "annotation_id": "0381455f-b442-4f34-8c68-aeb74560bf1b",
  "date_created": "2026-03-02T18:02:24.076000Z",
  "date_modified": "2026-03-02T18:02:24.076000Z",
  "file_hash": "32db2b9d37efbb21684043f382e855f499730e87946ecc45ca7eacdcf7b7b86a",
  "private": false,
  "record": {
    "abstract": "We demonstrate that generalized entanglement [Barnum {\\em et al.}, Phys. Rev.\nA {\\bf 68}, 032308 (2003)] provides a natural and reliable indicator of quantum\nchaotic behavior. Since generalized entanglement depends directly on a choice\nof preferred observables, exploring how generalized entanglement increases\nunder dynamical evolution is possible without invoking an auxiliary coupled\nsystem or decomposing the system into arbitrary subsystems. We find that, in\nthe chaotic regime, the long-time saturation value of generalized entanglement\nagrees with random matrix theory predictions. For our system, we provide\nphysical intuition into generalized entanglement within a single system by\ninvoking the notion of extent of a state. The latter, in turn, is related to\nother signatures of quantum chaos.",
    "arxiv_id": "quant-ph/0603071",
    "authors": [
      "Yaakov S. Weinstein",
      "Lorenza Viola"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1209/epl/i2006-10354-7",
    "journal_ref": "Europhys. Lett. 76, 746 (2006)",
    "title": "Generalized Entanglement as a Natural Framework for Exploring Quantum   Chaos",
    "url": "https://arxiv.org/abs/quant-ph/0603071"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "885871ee-72cf-46e0-8ac7-c48a71a8b353",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}