{
  "annotation_id": "25de97d3-6ef8-490d-8d37-f2368dce03f7",
  "date_created": "2026-03-02T18:02:30.154000Z",
  "date_modified": "2026-03-02T18:02:30.154000Z",
  "file_hash": "424d8f8b27a074ebb2488db6821ed3d0955650a90b6fb73498b64cd15b0c76da",
  "private": false,
  "record": {
    "abstract": "We present an investigation of the effects of constant but random shifts of\nthe ground hyperfine qubit states in the setting of quantum computing with ion\ndoped crystals. Complex hyperbolic secant pulses can be used to transfer ions\nreliably to electronically excited states, and a perturbative approach is used\nto analyse the effect of ground state hyperfine shifts. This analysis shows\nthat the errors due to the hyperfine shift are dynamically supressed during\ngate operation, a fact we attribute to the AC Stark shift. Furthermore we\npresent an implementation of a controlled phase gate which is resilient to the\neffects of the hyperfine shift. Decoherence and decay effects are included in\nsimulations in order to show that a demonstration of quantum gates is feasible\nover the relevant range of system parameters.",
    "arxiv_id": "quant-ph/0609171",
    "authors": [
      "Karl Tordrup",
      "Klaus M\u00f8lmer"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.75.022316",
    "title": "Effects of ground state hyperfine shifts in quantum computing with   optically hole burnt materials",
    "url": "https://arxiv.org/abs/quant-ph/0609171"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "37fffb26-7c2e-4766-aafe-77ee80071154",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}