{
  "annotation_id": "1e9f8e72-27a3-4574-bbaf-c11e7f3d3f34",
  "date_created": "2026-03-02T18:01:42.314000Z",
  "date_modified": "2026-03-02T18:01:42.314000Z",
  "file_hash": "93e22583d9aef92001e6b5048912280ccf65b1c4ebcb6424374c01dd6c81107d",
  "private": false,
  "record": {
    "abstract": "We present a conditional experiment involving a parametric amplifier and an\navalanche photodetector to generate highly nonclassical states of the radiation\nfield. The nonclassicality is robust against amplifier gain, detector\nefficiency and dark counts. At the output all the generalized Wigner functions\nhave negative values, and this is exploited in order to reveal the\nnonclassicality through quantum homodyne tomography.",
    "arxiv_id": "quant-ph/0102044",
    "authors": [
      "Matteo G. A. Paris"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/S0375-9601(01)00618-1",
    "journal_ref": "Phys. Lett. A vol 289 167 (2001)",
    "title": "A robust verification of the quantum nature of light",
    "url": "https://arxiv.org/abs/quant-ph/0102044"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "67513d0c-ad7c-4af3-8a97-ed962b896973",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}