{
  "annotation_id": "cc34459e-7fb6-4f5f-8d72-3f8f4cdd7986",
  "date_created": "2026-03-02T18:02:34.733000Z",
  "date_modified": "2026-03-02T18:02:34.733000Z",
  "file_hash": "56bf891791356d99bfa059f402f484568e9fe6e0f5a11b02eeedb6cac89dd4ef",
  "private": false,
  "record": {
    "abstract": "We investigate the linewidth of a quasi-continuous atom laser within a\nsemiclassical framework. In the high flux regime, the lasing mode can exhibit a\nnumber of undesirable features such as density fluctuations. We show that the\noutput therefore has a complicated structure that can be somewhat simplified\nusing Raman outcoupling methods and energy-momentum selection rules. In the\nweak outcoupling limit, we find that the linewidth of an atom laser is\ninstantaneously Fourier limited, but, due to the energy `chirp\u0027 associated with\nthe draining of a condensate, the long-term linewidth of an atom laser is\nequivalent to the chemical potential of the condensate source. We show that\ncorrectly sweeping the outcoupling frequency can recover the Fourier-limited\nlinewidth.",
    "arxiv_id": "quant-ph/0612189",
    "authors": [
      "Mattias Johnsson",
      "Simon Haine",
      "Joseph Hope",
      "Nick Robins",
      "Cristina Figl",
      "Matthew Jeppesen",
      "Julien Dugu\u00e9",
      "John Close"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.other"
    ],
    "doi": "10.1103/PhysRevA.75.043618",
    "title": "Semiclassical limits to the linewidth of an atom laser",
    "url": "https://arxiv.org/abs/quant-ph/0612189"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "cb68aa85-e738-43f9-b758-e401b53d9cce",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}