{
  "annotation_id": "28c0f19c-a25c-4e9e-9b7d-3f1656acd8c6",
  "date_created": "2026-03-02T18:02:34.654000Z",
  "date_modified": "2026-03-02T18:02:34.654000Z",
  "file_hash": "1581fb928582fa841acff4d851559b38d8c6683ca9bf87ee8e90614182c170de",
  "private": false,
  "record": {
    "abstract": "We show that a simple scheme based on nondegenerate four-wave mixing in a hot\natomic vapor behaves like a near-perfect phase-insensitive optical amplifier,\nwhich can generate bright twin beams with a measured quantum noise reduction in\nthe intensity difference of more than 8 dB, close to the best optical\nparametric amplifiers and oscillators. The absence of a cavity makes the system\nimmune to external perturbations, and the strong quantum noise reduction is\nobserved over a large frequency range.",
    "arxiv_id": "quant-ph/0703111",
    "authors": [
      "C. F. McCormick",
      "A. M. Marino",
      "V. Boyer",
      "P. D. Lett"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.78.043816",
    "title": "Strong low-frequency quantum correlations from a four-wave mixing   amplifier",
    "url": "https://arxiv.org/abs/quant-ph/0703111"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4b09cbfa-8d89-4390-a8e5-c412943eab1d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}