{
  "annotation_id": "5690678c-30fa-48eb-8aa2-73918a979713",
  "date_created": "2026-03-02T18:02:06.445000Z",
  "date_modified": "2026-03-02T18:02:06.445000Z",
  "file_hash": "b80d299be420e52cdf7487a71e6653e92ac8a377a40db3e9b89e731c69485a39",
  "private": false,
  "record": {
    "abstract": "We show how Bell observables on a bipartite quantum system can be obtained by\nlocal observables via a controlled-unitary transformation. For continuous\nvariables this result holds for the Bell observable corresponding to the\nnon-conventional heterodyne measurement on two radiation modes, which is\nconnected through a 50-50 beam-splitter to two local observables given by\nsingle-mode homodyne measurements. A simple scheme for a controlled-unitary\ntransformation of continuous variables is also presented, which needs only two\nsqueezers, a parametric downconverter and two beam splitters.",
    "arxiv_id": "quant-ph/0406077",
    "authors": [
      "Giacomo Mauro D\u0027Ariano",
      "Paolo Perinotti"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/j.physleta.2004.07.006",
    "journal_ref": "Phys. Lett. A, Vol. 329/3 pp 188-192 (2004)",
    "title": "On the realization of Bell observables",
    "url": "https://arxiv.org/abs/quant-ph/0406077"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "229fb581-c058-47e3-8af3-3db783c947fc",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}