{
  "annotation_id": "3a115ede-d423-4bf6-9804-5b5b233079af",
  "date_created": "2026-03-02T18:02:44.263000Z",
  "date_modified": "2026-03-02T18:02:44.263000Z",
  "file_hash": "68868e4a136ee91ec30586ec70c757a02db68e66283c63b7d63e4c26f7700c6d",
  "private": false,
  "record": {
    "abstract": "We suggest a variant of the recently proposed experiment for the generation\nof a new kind of Schroedinger-cat states, using two coupled parametric\ndown-converter nonlinear crystals [F. De Martini, Phys. Rev. Lett. 81, 2842\n(1998)]. We study the parametric oscillator case and find that an entangled\nSchroedinger-cat type state of two cavities, whose mirrors are placed along the\noutput beams of the nonlinear crystals, can be realized under suitable\nconditions.",
    "arxiv_id": "quant-ph/9902082",
    "authors": [
      "Francesco De Martini",
      "Mauro Fortunato",
      "Paolo Tombesi",
      "David Vitali"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.60.1636",
    "journal_ref": "Phys.Rev.A60:1636,1999",
    "title": "Generating entangled superpositions of macroscopically distinguishable   states within a parametric oscillator",
    "url": "https://arxiv.org/abs/quant-ph/9902082"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "aaf17d9f-68b3-4a40-9fdf-9cec1386d49b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}