{
  "annotation_id": "dcdb13c9-b3ee-4310-a28a-ff80d8d07c4f",
  "date_created": "2026-03-02T18:02:48.463000Z",
  "date_modified": "2026-03-02T18:02:48.463000Z",
  "file_hash": "f16e088515a59566426039740253ac2f74d9a8973147d9ff56a48551e15a1ad3",
  "private": false,
  "record": {
    "abstract": "A single Ca+ ion in a Paul trap has been cooled to the ground state of\nvibration with up to 99.9% probability. Starting from this Fock state |n=0\u003e we\nhave demonstrated coherent quantum state manipulation on an optical transition.\nUp to 30 Rabi oscillations within 1.4 ms have been observed. We find a similar\nnumber of Rabi oscillations after preparation of the ion in the |n=1\u003e Fock\nstate. The coherence of optical state manipulation is only limited by laser and\nambient magnetic field fluctuations. Motional heating has been measured to be\nas low as one vibrational quantum in 190 ms.",
    "arxiv_id": "quant-ph/9909038",
    "authors": [
      "Ch. Roos",
      "Th. Zeiger",
      "H. Rohde",
      "H. C. Naegerl",
      "J. Eschner",
      "D. Leibfried",
      "F. Schmidt-Kaler",
      "R. Blatt"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.83.4713",
    "title": "Quantum state engineering on an optical transition and decoherence in a   Paul trap",
    "url": "https://arxiv.org/abs/quant-ph/9909038"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "81983416-20f9-413c-943d-855cf1731f89",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}