{
  "annotation_id": "df66b13a-5c50-4cfd-950c-b145fdf2e015",
  "date_created": "2026-03-02T18:01:53.169000Z",
  "date_modified": "2026-03-02T18:01:53.169000Z",
  "file_hash": "aad201ba381c8f8d4e4d457dd5c1e6011adb8b53e02f6f760b857ce6c3504998",
  "private": false,
  "record": {
    "abstract": "Noiseless subsystems offer a general and efficient method for protecting\nquantum information in the presence of noise that has symmetry properties. A\nparadigmatic class of error models displaying non-trivial symmetries emerges\nunder collective noise behavior, which implies a permutationally-invariant\ninteraction between the system and the environment. We describe experiments\ndemonstrating the preservation of a bit of quantum information encoded in a\nthree qubit noiseless subsystem for general collective noise. A complete set of\ninput states is used to determine the super-operator for the implemented\none-qubit process and to confirm that the fidelity of entanglement is improved\nfor a large, non-commutative set of engineered errors. To date, this is the\nlargest set of error operators that has been successfully corrected for by any\nquantum code.",
    "arxiv_id": "quant-ph/0210057",
    "authors": [
      "Evan M. Fortunato",
      "Lorenza Viola",
      "Marco A. Pravia",
      "Emanuel Knill",
      "Raymond Laflamme",
      "Timothy F. Havel",
      "David G. Cory"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.67.062303",
    "title": "Exploring Noiseless Subsystems via Nuclear Magnetic Resonance",
    "url": "https://arxiv.org/abs/quant-ph/0210057"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c80b5c3c-27e5-4cd2-af43-4e3ca4efa3ec",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}