{
  "annotation_id": "a23f3ca8-a617-48b7-a1a7-01b9b3f1a2c2",
  "date_created": "2026-03-02T18:02:30.809000Z",
  "date_modified": "2026-03-02T18:02:30.809000Z",
  "file_hash": "274dc0f411e7378c9ab4406ce2cb340c97cab353eb5d0cd53ee11e3d89220b49",
  "private": false,
  "record": {
    "abstract": "We analyse some compositeness effects and their relation with entanglement.\nWe show that the purity of a composite system increases, in the sense of the\nexpectation values of the deviation operators, with large values of the\nentanglement between the components of the system. We also study the validity\nof Pauli\u0027s principle in composite systems. It is valid within the limits of\napplication of the approach presented here. We also present an example of two\nidentical fermions, one of them entangled with a distinguishable particle,\nwhere the exclusion principle cannot be applied. This result can be important\nin the description of open systems.",
    "arxiv_id": "quant-ph/0609147",
    "authors": [
      "Pedro Sancho"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/0305-4470/39/40/017",
    "journal_ref": "J. Phys. A 39 (2006) 12525-12537",
    "title": "Compositeness effects, Pauli\u0027s principle and entanglement",
    "url": "https://arxiv.org/abs/quant-ph/0609147"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0a18df61-0836-407a-99f4-4d4d816897be",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}