{
  "annotation_id": "04b2141e-8f33-40e7-b874-05755970197c",
  "date_created": "2026-03-02T18:02:06.438000Z",
  "date_modified": "2026-03-02T18:02:06.438000Z",
  "file_hash": "e87f63b0bc2173f3b32923f7d41cbcd0cc8d632c1ad969f093e11b5cdf631924",
  "private": false,
  "record": {
    "abstract": "Quantum noise of the electromagnetic field is one of the limiting noise\nsources in interferometric gravitational wave detectors. Shifting the spectrum\nof squeezed vacuum states downwards into the acoustic band of gravitational\nwave detectors is therefore of challenging demand to quantum optics\nexperiments. We demonstrate a system that produces nonclassical continuous\nvariable states of light that are squeezed at sideband frequencies below 100\nkHz. A single optical parametric amplifier (OPA) is used in an optical noise\ncancellation scheme providing squeezed vacuum states with coherent bright phase\nmodulation sidebands at higher frequencies. The system has been stably locked\nfor half an hour limited by thermal stability of our laboratory.",
    "arxiv_id": "quant-ph/0402064",
    "authors": [
      "R. Schnabel",
      "H. Vahlbruch",
      "A. Franzen",
      "S. Chelkowski",
      "N. Grosse",
      "H. -A. Bachor",
      "W. P. Bowen",
      "P. K. Lam",
      "K. Danzmann"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/j.optcom.2004.06.030",
    "journal_ref": "Optics Communications 240 (2004) 185-190",
    "title": "Squeezed light at sideband frequencies below 100 kHz from a single OPA",
    "url": "https://arxiv.org/abs/quant-ph/0402064"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6af058d0-6f00-4746-be0d-d7b1be66d4b3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}