{
  "annotation_id": "3416629b-a473-4720-bc2d-f7779aff8f64",
  "date_created": "2026-03-02T18:02:13.454000Z",
  "date_modified": "2026-03-02T18:02:13.454000Z",
  "file_hash": "6fe0f301885e80f81d0bdee3080c673f146c3540df7f1ddd56fd816034db8446",
  "private": false,
  "record": {
    "abstract": "A bipartite quantum state is tomographically faithful when it can be used as\nan input of a quantum operation acting on one of the two quantum systems, such\nthat the joint output state carries a complete information about the operation\nitself. Tomographically faithful states are a necessary ingredient for\ntomography of quantum operations and for complete quantum calibration of\nmeasuring apparatuses. In this paper we provide a complete classification of\nsuch states for continuous variables in terms of the Wigner function of the\nstate. For two-mode Gaussian states faithfulness simply resorts to correlation\nbetween the modes.",
    "arxiv_id": "quant-ph/0503022",
    "authors": [
      "G. M. D\u0027Ariano",
      "M. F. Sacchi"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1464-4266/7/10/030",
    "journal_ref": "J. Opt. B 7, S408 (2005)",
    "title": "Characterization of tomographically faithful states in terms of their   Wigner function",
    "url": "https://arxiv.org/abs/quant-ph/0503022"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4e801fc4-68a2-4d64-84f6-82988d79fdec",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}