{
  "annotation_id": "37b702e3-8e4b-4ddb-8a61-bd0e637ed120",
  "date_created": "2026-03-02T18:01:46.023000Z",
  "date_modified": "2026-03-02T18:01:46.023000Z",
  "file_hash": "1ba1caa9ec18852db87bb1c78b0ebca0a1db7b58e917e199091c8cf508bb1af5",
  "private": false,
  "record": {
    "abstract": "We investigate the problem of determining the parameters that describe a\nquantum channel. It is assumed that the users of the channel have at best only\npartial knowledge of it and make use of a finite amount of resources to\nestimate it. We discuss simple protocols for the estimation of the parameters\nof several classes of channels that are studied in the current literature. We\ndefine two different quantitative measures of the quality of the estimation\nschemes, one based on the standard deviation, the other one on the fidelity.\nThe possibility of protocols that employ entangled particles is also\nconsidered. It turns out that the use of entangled particles as a new kind of\nnonclassical resource enhances the estimation quality of some classes of\nquantum channel. Further, the investigated methods allow us to extend them to\nhigher dimensional quantum systems.",
    "arxiv_id": "quant-ph/0108037",
    "authors": [
      "Markus A. Cirone",
      "Aldo Delgado",
      "Dietmar G. Fischer",
      "Matthias Freyberger",
      "Holger Mack",
      "Michael Mussinger"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Estimation of quantum channels with finite resources",
    "url": "https://arxiv.org/abs/quant-ph/0108037"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8b775f22-6a4a-49c4-9a80-21a1236f82a7",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}