{
  "annotation_id": "47e20c44-0244-497b-ad2e-a8296af0b409",
  "date_created": "2026-03-02T18:02:16.028000Z",
  "date_modified": "2026-03-02T18:02:16.028000Z",
  "file_hash": "93aa035d3ddd0bc4bf4967918273a9f78784d3572178207680fd53fb0eee9d05",
  "private": false,
  "record": {
    "abstract": "We present a quantum mechanical description of parametric down-conversion and\nphase-matching of Bloch-waves in non-linear photonic crystals. We discuss the\ntheory in one-dimensional Bragg structures giving a recipe for calculating the\ndown-converted emission strength and direction. We exemplify the discussion by\nmaking explicit analytical predictions for the emission amplitude and direction\nfrom a one-dimensional structure that consists of alternating layers of\nAl0.4Ga0.6As and Air. We show that the emission is suitable for the extraction\nof polarization-entangled photons.",
    "arxiv_id": "quant-ph/0505076",
    "authors": [
      "William T. M. Irvine",
      "Michiel J. A. de Dood",
      "Dirk Bouwmeester"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.72.043815",
    "journal_ref": "Phys. Rev. A 72, 043815 (2005)",
    "title": "Bloch theory of entangled photon generation in non-linear photonic   crystals",
    "url": "https://arxiv.org/abs/quant-ph/0505076"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e7d7ac13-9f52-4857-a9d7-d1afd9629e80",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}