{
  "annotation_id": "4e5ce55e-22e0-4d64-b67e-d63f5e0d9e42",
  "date_created": "2026-03-02T18:01:55.527000Z",
  "date_modified": "2026-03-02T18:01:55.527000Z",
  "file_hash": "b749debd73770d076c660cce5d8dd54fe153580fafb99f8618785898b8f3145d",
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  "record": {
    "abstract": "Off-diagonal mixed state phases based upon a concept of orthogonality adapted\nto unitary evolution and a proper normalisation condition are introduced. Some\nparticular instances are analysed and parallel transport leading to the\noff-diagonal mixed state geometric phase is delineated. A complete experimental\nrealisation of the off-diagonal mixed state geometric phases in the qubit case\nusing polarisation-entangled two-photon interferometry is proposed.",
    "arxiv_id": "quant-ph/0212111",
    "authors": [
      "Erik Sj\u00f6qvist",
      "Stefan Filipp"
    ],
    "categories": [
      "quant-ph"
    ],
    "journal_ref": "Foundations of probability and physics - 2, ed. by A. Khrennikov\n  (V\\\"axj\\\"o Univ. Press, 2003), p. 545.",
    "title": "Off-diagonal mixed state phases in unitary evolution",
    "url": "https://arxiv.org/abs/quant-ph/0212111"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "eefc090b-67a8-40f4-8c43-757cf16cad91",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}