{
  "annotation_id": "3fc23aff-7932-4bae-90d8-202a702b59c0",
  "date_created": "2026-03-02T18:01:56.344000Z",
  "date_modified": "2026-03-02T18:01:56.344000Z",
  "file_hash": "f56dfb6aafaa692cbd5c91b6164379191105d9ca5e9ccb67f5d18db0d39ec877",
  "private": false,
  "record": {
    "abstract": "We present an explicit construction of entanglement witnesses for depolarized\nstates in arbitrary finite dimension. For infinite dimension we generalize the\nconstruction to twin-beams perturbed by Gaussian noises in the phase and in the\namplitude of the field. We show that entanglement detection for all these\nfamilies of states requires only three local measurements. The explicit form of\nthe corresponding set of local observables (quorom) needed for entanglement\nwitness is derived.",
    "arxiv_id": "quant-ph/0211146",
    "authors": [
      "G. Mauro D\u0027Ariano",
      "Chiara Macchiavello",
      "Matteo G. A. Paris"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.67.042310",
    "journal_ref": "Phys. Rev. A 67, 042310 (2003)",
    "title": "Local observables for entanglement witnesses",
    "url": "https://arxiv.org/abs/quant-ph/0211146"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "40124bfa-e6fd-4a80-8479-b193cbba2550",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}