{
  "annotation_id": "954018db-9c7e-4a3b-9784-908d3a259af5",
  "date_created": "2026-03-02T18:01:38.505000Z",
  "date_modified": "2026-03-02T18:01:38.505000Z",
  "file_hash": "d4d14dbb21cc19ba0cc6ba186b9e7b414ed4914a30617a6da7014741723a62b2",
  "private": false,
  "record": {
    "abstract": "We provide a physical prescription based on interferometry for introducing\nthe total phase of a mixed state undergoing unitary evolution, which has been\nan elusive concept in the past. We define the parallel transport condition that\nprovides a connection-form for obtaining the geometric phase for mixed states.\nThe expression for the geometric phase for mixed state reduces to well known\nformulas in the pure state case when a system undergoes noncyclic and unitary\nquantum evolution.",
    "arxiv_id": "quant-ph/0005072",
    "authors": [
      "Erik Sj\u00f6qvist",
      "Arun K. Pati",
      "Artur Ekert",
      "Jeeva S. Anandan",
      "Marie Ericsson",
      "Daniel K. L. Oi",
      "Vlatko Vedral"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.85.2845",
    "journal_ref": "Phys. Rev. Lett. 85 (2000) 2845.",
    "title": "Geometric phases for mixed states in interferometry",
    "url": "https://arxiv.org/abs/quant-ph/0005072"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "995cce83-39c5-4d00-8523-092a1bb61bc1",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}