{
  "annotation_id": "38dd115f-99c9-4dd0-915e-45b6997356d4",
  "date_created": "2026-03-02T18:01:42.708000Z",
  "date_modified": "2026-03-02T18:01:42.708000Z",
  "file_hash": "0f04d751f3ca2b6da2c328a070f0e8459515dbb39098b29d8e3d74a4471b67d3",
  "private": false,
  "record": {
    "abstract": "A continuous atom laser will almost certainly have a linewidth dominated by\nthe effect of the atomic interaction energy, which turns fluctuations in the\ncondensate atom number into fluctuations in the condensate frequency. These\ncorrelated fluctuations mean that information about the atom number could be\nused to reduce the frequency fluctuations, by controlling a spatially uniform\npotential. We show that feedback based on a physically reasonable quantum\nnon-demolition measurement of the atom number of the condensate in situ can\nreduce the linewidth enormously.",
    "arxiv_id": "quant-ph/0101109",
    "authors": [
      "H. M. Wiseman",
      "L. K. Thomsen"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.86.1143",
    "journal_ref": "PRL 86, 1143 (2001)",
    "title": "Reducing the linewidth of an atom laser by feedback",
    "url": "https://arxiv.org/abs/quant-ph/0101109"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "13d42dc7-d5c7-4582-a914-c6eebc574ee0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}