{
  "annotation_id": "f4497820-e26f-4c3d-a038-849175d504ed",
  "date_created": "2026-03-02T18:02:30.929000Z",
  "date_modified": "2026-03-02T18:02:30.929000Z",
  "file_hash": "1a4ef4c77a239c0ec9f005db9e6b34bed8cf3d3fe74246cc26d11bb2c75d1aaf",
  "private": false,
  "record": {
    "abstract": "We show that the relation between nonlocality and entanglement is subtler\nthan one naively expects. In order to do this we consider the neutral kaon\nsystem--which is oscillating in time (particle--antiparticle mixing) and\ndecaying--and describe it as an open quantum system. We consider a Bell--CHSH\ninequality and show a novel violation for non--maximally entangled states.\nConsidering the change of purity and entanglement in time we find that, despite\nthe fact that only two degrees of freedom at a certain time can be measured,\nthe neutral kaon system does not behave like a bipartite qubit system.",
    "arxiv_id": "quant-ph/0607210",
    "authors": [
      "Beatrix C. Hiesmayr"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1140/epjc/s10052-006-0199-x",
    "journal_ref": "European Physical Journal C, Vol. 50, 73-79 (2007)",
    "title": "Nonlocality and entanglement in a strange system",
    "url": "https://arxiv.org/abs/quant-ph/0607210"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "583ad52f-bfee-4901-a183-e22858f28445",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}