{
  "annotation_id": "551f30d3-6d1d-488f-a088-47dca11d24d9",
  "date_created": "2026-03-02T18:02:20.485000Z",
  "date_modified": "2026-03-02T18:02:20.485000Z",
  "file_hash": "d1308fd186007cfabbce85da4253ffeeb8850c157805ef6c0bb31823e948dcd6",
  "private": false,
  "record": {
    "abstract": "We investigate entanglement properties of a recently introduced class of\nmacroscopic quantum superpositions in two-mode mixed states. One of the tools\nwe use in order to infer the entanglement in this non-Gaussian class of states\nis the power to entangle a qubit system. Our study reveals features which are\nhidden in a standard approach to entanglement investigation based on the\nuncertainty principle of the quadrature variables. We briefly describe the\nexperimental setup corresponding to our theoretical scenario and a suitable\nmodification of the protocol which makes our proposal realizable within the\ncurrent experimental capabilities.",
    "arxiv_id": "quant-ph/0510064",
    "authors": [
      "M. Paternostro",
      "H. Jeong",
      "M. S. Kim"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.73.012338",
    "journal_ref": "Phys. Rev. A 73, 012338 (2006)",
    "title": "Entanglement of mixed macroscopic superpositions: an entangling-power   study",
    "url": "https://arxiv.org/abs/quant-ph/0510064"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "bd357b87-8064-4d3f-abf4-1aa1e1e9fad2",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}