{
  "annotation_id": "06c009ae-0903-4c73-a9af-d73918c0c3d3",
  "date_created": "2026-03-02T18:02:48.426000Z",
  "date_modified": "2026-03-02T18:02:48.426000Z",
  "file_hash": "20ad0e640d87d6394829a5c036b0d70798419ee2d81451f3868223dcbd72091a",
  "private": false,
  "record": {
    "abstract": "We implement an ensemble quantum counting algorithm on three NMR\nspectrometers with 1H resonance frequencies of 500, 600 and 750 MHz. At higher\nfrequencies, the results deviate markedly from naive theoretical predictions.\nThese systematic errors can be attributed almost entirely to off-resonance\neffects, which can be substantially corrected for using fully-compensating\ncomposite rotation pulse sequences originally developed by Tycko. We also\nderive an analytic expression for generating such sequences with arbitrary\nrotation angles.",
    "arxiv_id": "quant-ph/9911072",
    "authors": [
      "H. K. Cummins",
      "J. A. Jones"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1367-2630/2/1/006",
    "journal_ref": "New J. Phys. 2 6.1-6.12 (2000)",
    "title": "Use of composite rotations to correct systematic errors in NMR quantum   computation",
    "url": "https://arxiv.org/abs/quant-ph/9911072"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ce11bbf3-91e5-4142-8a6c-54dc39a71945",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}