{
  "annotation_id": "72befe35-1a84-4581-83fe-8b1d81295159",
  "date_created": "2026-03-02T18:01:45.964000Z",
  "date_modified": "2026-03-02T18:01:45.964000Z",
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  "record": {
    "abstract": "Every Bose-Einstein condensate is in a highly entangled state, as a\nconsequence of the fact that the particles in a condensate are distributed over\nspace in a coherent way. It is proved that any two regions within a condensate\nof finite particle number are entangled. This entanglement does not depend on\nthe distance between the two regions. Criteria for the presence of entanglement\nare derived in the context of interference experiments. For separable states\nthere is a trade-off between fluctuations in particle number and interference\nvisibility.",
    "arxiv_id": "quant-ph/0110114",
    "authors": [
      "Christoph Simon"
    ],
    "categories": [
      "quant-ph",
      "cond-mat"
    ],
    "doi": "10.1103/PhysRevA.66.052323",
    "journal_ref": "Phys. Rev. A 66, 052323 (2002)",
    "title": "Natural Entanglement in Bose-Einstein Condensates",
    "url": "https://arxiv.org/abs/quant-ph/0110114"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6541ba09-4cba-40ab-80c1-53f58240b659",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}