{
  "annotation_id": "e6901afd-331e-4477-ba6f-c5dc8e0b2d7c",
  "date_created": "2026-03-02T18:02:02.922000Z",
  "date_modified": "2026-03-02T18:02:02.922000Z",
  "file_hash": "c19ffc97927b1b81031a206888a1eb88657d697b19e624b37129a670b3179ecf",
  "private": false,
  "record": {
    "abstract": "Quantum fluctuation and quantum entanglement of the pump field reflected from\nan optical cavity for type II second harmonic generation are theoretically\nanalyzed. The correlation spectra between the quadratures of the reflected\nsubharmonic fields are interpreted in terms of pump parameter, intracavity\nlosses and normalized frequency. Large correlation degrees of both amplitude\nand phase quadratures can be accessed in a triple resonant cavity before the\npitchfork bifurcation occurs. The two reflected subharmonic fields are in an\nentangled state with the quantum correlation of phase quadratures and\nanticorrelation of amplitude quadratures. The proposed system can be exploited\nto be a new source generating entangled states of continuous variables.",
    "arxiv_id": "quant-ph/0312137",
    "authors": [
      "Zehui Zhai",
      "Yongming Li",
      "Jiangrui Gao"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.69.044301",
    "journal_ref": "Phys.Rev.A 69,044301(2004)",
    "title": "Entanglement characteristics of subharmonic modes reflected from cavity   for type II second harmonic generation",
    "url": "https://arxiv.org/abs/quant-ph/0312137"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "60239e53-8ec2-4bf6-83c4-2a03bad09846",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}