{
  "annotation_id": "d3f712f6-f66d-4529-b4df-c38b33bb8430",
  "date_created": "2026-03-02T18:02:07.108000Z",
  "date_modified": "2026-03-02T18:02:07.108000Z",
  "file_hash": "669dde6227b7816de5dea598b1557fdcc8c2d6adf51fdd51d94c92c2a52873b2",
  "private": false,
  "record": {
    "abstract": "Uhlmann\u0027s concept of quantum holonomy for paths of density operators is\ngeneralised to the off-diagonal case providing insight into the geometry of\nstate space when the Uhlmann holonomy is undefined. Comparison with previous\noff-diagonal geometric phase definitions is carried out and an example\ncomprising the transport of a Bell-state mixture is given.",
    "arxiv_id": "quant-ph/0403204",
    "authors": [
      "Stefan Filipp",
      "Erik Sj\u00f6qvist"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/j.physleta.2005.05.043",
    "journal_ref": "Phys. Lett. A 342, 205 (2005)",
    "title": "Off-diagonal quantum holonomy along density operators",
    "url": "https://arxiv.org/abs/quant-ph/0403204"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0810d730-b6fc-44ef-b67d-515df49ced34",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}