{
  "annotation_id": "6b11231e-7175-482e-b78d-773b6e1146a1",
  "date_created": "2026-03-02T18:00:43.553000Z",
  "date_modified": "2026-03-02T18:00:43.553000Z",
  "file_hash": "30f804d34e1447f0587ff8d20bdf6c9bf112c2c8935b1aa016606bc2051d5dc1",
  "private": false,
  "record": {
    "abstract": "Using optical Ramsey interferometry, we precisely measure the laser-induced\nAC-stark shift on the $S_{1/2}$ -- $D_{5/2}$ \"quantum bit\" transition near 729\nnm in a single trapped $^{40}$Ca$^+$ ion. We cancel this shift using an\nadditional laser field. This technique is of particular importance for the\nimplementation of quantum information processing with cold trapped ions. As a\nsimple application we measure the atomic phase evolution during a $n \\times\n2\\pi$ rotation of the quantum bit.",
    "arxiv_id": "physics/0212040",
    "authors": [
      "H. Haeffner",
      "S. Gulde",
      "M. Riebe",
      "G. Lancaster",
      "C. Becher",
      "J. Eschner",
      "F. Schmidt-Kaler",
      "R. Blatt"
    ],
    "categories": [
      "physics.atom-ph",
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.90.143602",
    "journal_ref": "Phys.Rev.Lett.90:143602,2003",
    "title": "Precision measurement and compensation of optical Stark shifts for an   ion-trap quantum processor",
    "url": "https://arxiv.org/abs/physics/0212040"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c8f0fd5b-c4eb-4045-aa60-cf0116470f1c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}