{
  "annotation_id": "7793e7cf-12bb-4efe-9a4a-3535c13334b1",
  "date_created": "2026-03-02T18:02:34.310000Z",
  "date_modified": "2026-03-02T18:02:34.310000Z",
  "file_hash": "17f03fc55867976448d951ba9b1e5598bb1114c058fbfcede04c424bc5ad43ef",
  "private": false,
  "record": {
    "abstract": "The nonclassicality of photon-added coherent fields in the thermal channel is\ninvestigated by exploring the volume of the negative part of the Wigner\nfunction which reduces with the dissipative time. The Wigner functions become\npositive when the decay time exceeds a threshold value. For the case of the\nsingle photon-added coherent state, we derive the exact threshold values of\ndecay time in the thermal channel. For arbitrary partial negative Wigner\ndistribution function, a generic analytical relation between the mean photon\nnumber of heat bath and the threshold value of decay time is presented.\nFinally, the possible application of SPACSs in quantum computation has been\nbriefly discussed.\n  OCIS codes: 270.0270, 270.2500, 000.5490",
    "arxiv_id": "quant-ph/0702137",
    "authors": [
      "Shang-Bin Li",
      "Justin Liu",
      "Xu-Bo Zou",
      "Guang-Can Guo"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1364/JOSAB.25.000054",
    "journal_ref": "J. Opt. Soc. Am. B 25, 54 (2008)",
    "title": "Nonclassicality of quantum excitation of classical coherent fields in   thermal environments",
    "url": "https://arxiv.org/abs/quant-ph/0702137"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "609f266f-c8f2-4c82-8165-cbff55002c97",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}