{
  "annotation_id": "00d01b29-4881-4a55-9737-6ca3410159c2",
  "date_created": "2026-03-02T18:00:46.796000Z",
  "date_modified": "2026-03-02T18:00:46.796000Z",
  "file_hash": "dd0106eee75632d466bfeff73e7d2b37320ab79dcc22e47d1fc7ff20f4ef0d25",
  "private": false,
  "record": {
    "abstract": "We present a measurement of the lifetime of the metastable 3d 2D5/2 state in\nthe 40Ca+ ion, using the so-called shelving technique on a string of five\nDoppler laser-cooled ions in a linear Paul trap. A detailed account of the data\nanalysis is given, and systematic effects due to unwanted excitation processes\nand collisions with background gas atoms are discussed and estimated. From a\ntotal of 6805 shelving events, we obtain a lifetime\ntau=1149+/-14(stat.)+/-4(sys.)ms, a result which is in agreement with the most\nrecent measurements.",
    "arxiv_id": "physics/0311103",
    "authors": [
      "Peter Staanum",
      "Inger S. Jensen",
      "Randi G. Martinussen",
      "Dirk Voigt",
      "Michael Drewsen"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.69.032503",
    "journal_ref": "Phys. Rev. A 69, 032503 (2004)",
    "title": "Lifetime measurement of the metastable 3d 2D5/2 state in the 40Ca+ ion   using the shelving technique on a few-ion string",
    "url": "https://arxiv.org/abs/physics/0311103"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a2b5b626-db84-4068-a24f-ccebfd05383d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}