{
  "annotation_id": "c7c95e70-e713-42f3-8d0c-26ff408e6c49",
  "date_created": "2026-03-02T18:02:30.151000Z",
  "date_modified": "2026-03-02T18:02:30.151000Z",
  "file_hash": "6fce22979ff805ac49757855f3b72cee96b4dbb008be864886e0ae04d13b3913",
  "private": false,
  "record": {
    "abstract": "We consider the question of whether it is possible to use the entanglement\nbetween spatially separated modes of massive particles to observe nonlocal\nquantum correlations. Mode entanglement can be obtained using a single\nparticle, indicating that it requires careful consideration before concluding\nwhether experimental observation, e.g. violation of Bell inequalities, is\npossible or not. In the simplest setups analogous to optics experiments, that\nobservation is prohibited by fundamental conservation laws. However, we show\nthat using auxiliary particles, mode entanglement can be converted into forms\nthat allow the observation of quantum non-locality. The probability of\nsuccessful conversion depends on the nature and number of auxiliary particles\nused. In particular, we find that an auxiliary Bose-Einstein condensate allows\nthe conversion arbitrarily many times with a small error that depends only on\nthe initial state of the condensate.",
    "arxiv_id": "quant-ph/0609131",
    "authors": [
      "S. Ashhab",
      "Koji Maruyama",
      "Franco Nori"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.other"
    ],
    "doi": "10.1103/PhysRevA.75.022108",
    "journal_ref": "Phys. Rev. A 75, 022108 (2007)",
    "title": "Observing quantum non-locality in the entanglement between modes of   massive particles",
    "url": "https://arxiv.org/abs/quant-ph/0609131"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "16ce9f77-840f-4b11-8362-9827355bf2b4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}