{
  "annotation_id": "538ddeb5-f0da-409a-b9a4-1c2aae010760",
  "date_created": "2026-03-02T18:02:13.643000Z",
  "date_modified": "2026-03-02T18:02:13.643000Z",
  "file_hash": "b907255d29e4fddfeaf669b7398d35fe47d13d1eb9e50d1ebe81c93ec2076d28",
  "private": false,
  "record": {
    "abstract": "We describe a method for non-degenerate four-wave mixing in a cold sample of\n  4-level atoms. An integral part of the four-wave mixing process is a\ncollective instability which spontaneously generates a periodic density\nmodulation in the cold atomic sample with a period equal to half of the\nwavelength of the generated high-frequency optical field. Due to the generation\nof this density modulation, phase-matching between the pump and scattered\nfields is not a necessary initial condition for this wave-mixing process to\noccur, rather the density modulation acts to \"self phase-match\" the fields\nduring the course of the wave-mixing process. We describe a one-dimensional\nmodel of this process, and suggest a proof-of-principle experiment which would\ninvolve pumping a sample of cold Cs atoms with three infra-red pump fields to\nproduce blue light.",
    "arxiv_id": "quant-ph/0412190",
    "authors": [
      "G. R. M. Robb",
      "B. W. J. McNeil"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.94.023901",
    "title": "Four wave mixing with self-phase matching due to collective atomic   recoil",
    "url": "https://arxiv.org/abs/quant-ph/0412190"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "77cffb82-ddb8-4abd-a7c9-6322a9bcf5b4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}