{
  "annotation_id": "50f352ad-b65c-4dfc-a43d-5301632ef77e",
  "date_created": "2026-03-02T18:01:52.297000Z",
  "date_modified": "2026-03-02T18:01:52.297000Z",
  "file_hash": "754a99577f09e4e891d2114f43aac54dc08273c8ba938e1e40df7c16a658c1b3",
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  "record": {
    "abstract": "We investigate the entangling capability of passive optical elements, both\nqualitatively and quantitatively. We present a general necessary and sufficient\ncondition for the possibility of creating distillable entanglement in an\narbitrary multi-mode Gaussian state with the help of passive optical elements,\nthereby establishing a general connection between squeezing and the\nentanglement that is attainable by non-squeezing operations. Special attention\nis devoted to general two-mode Gaussian states, for which we provide the\noptimal entangling procedure, present an explicit formula for the attainable\ndegree of entanglement measured in terms of the logarithmic negativity, and\ndiscuss several practically important special cases.",
    "arxiv_id": "quant-ph/0206171",
    "authors": [
      "M. M. Wolf",
      "J. Eisert",
      "M. B. Plenio"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.90.047904",
    "journal_ref": "Phys. Rev. Lett. 90, 047904 (2003)",
    "title": "The entangling power of passive optical elements",
    "url": "https://arxiv.org/abs/quant-ph/0206171"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "be188fb9-1ce7-454b-998c-6ed07bd9680e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}