{
  "annotation_id": "6d9f304b-7d96-44d3-abd6-b9648d962e36",
  "date_created": "2026-03-02T18:02:10.326000Z",
  "date_modified": "2026-03-02T18:02:10.326000Z",
  "file_hash": "0dd3ce3d72db010bd02f6d776d673c3f16beb0f6e7ce5f9069033e16d6598c60",
  "private": false,
  "record": {
    "abstract": "Concatenated coding provides a general strategy to achieve the desired level\nof noise protection in quantum information storage and transmission. We report\nthe implementation of a concatenated quantum error-correcting code able to\ncorrect against phase errors with a strong correlated component. The experiment\nwas performed using liquid-state nuclear magnetic resonance techniques on a\nfour spin subsystem of labeled crotonic acid. Our results show that\nconcatenation between active and passive quantum error-correcting codes offers\na practical tool to handle realistic noise contributed by both independent and\ncorrelated errors.",
    "arxiv_id": "quant-ph/0409193",
    "authors": [
      "Nicolas Boulant",
      "Lorenza Viola",
      "Evan M. Fortunato",
      "David G. Cory"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.94.130501",
    "title": "Experimental Implementation of a Concatenated Quantum Error-Correcting   Code",
    "url": "https://arxiv.org/abs/quant-ph/0409193"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c9d6f275-dc69-45ef-95c2-5fd202c0cd63",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}