{
  "annotation_id": "108b8560-d23f-410b-b44b-4ebe6e3793df",
  "date_created": "2026-03-02T18:01:11.219000Z",
  "date_modified": "2026-03-02T18:01:11.219000Z",
  "file_hash": "f1484309bfece97aac642d56a55bc4247a6eb6bd5f20c1cb7ea058b3e71effc3",
  "private": false,
  "record": {
    "abstract": "We report on the development of a sapphire cryogenic microwave resonator\noscillator long-term fractional frequency stability of 2x10^-17Sqrt[\\tau] for\nintegration times \\tau\u003e10^3 s and negative drift of about 2.2x10^-15/day. The\nshort-term frequency instability of the oscillator is highly reproducible and\nalso state-of-the-art: 5.6x10^-16 for an integration time of \\tau ~ 20 s.",
    "arxiv_id": "physics/0608124",
    "authors": [
      "J. G. Hartnett",
      "C. R. Locke",
      "E. N. Ivanov",
      "M. E. Tobar",
      "P. L. Stanwix"
    ],
    "categories": [
      "physics.ins-det",
      "gr-qc",
      "physics.class-ph",
      "quant-ph"
    ],
    "doi": "10.1063/1.2387969",
    "journal_ref": "Appl.Phys.Lett.89:203513,2006",
    "title": "Cryogenic sapphire oscillator with exceptionally high long-term   frequency stability",
    "url": "https://arxiv.org/abs/physics/0608124"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b464f108-64fe-480f-8152-b4d206f53633",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}