{
  "annotation_id": "9194c7d6-a259-4785-b49b-11304a534659",
  "date_created": "2026-03-02T18:01:42.574000Z",
  "date_modified": "2026-03-02T18:01:42.574000Z",
  "file_hash": "638ba364dd7abb484edba702a5908fa011ff14b462cf4ca4014243afb1792b47",
  "private": false,
  "record": {
    "abstract": "We discuss the estimation of channel parameters for a noisy quantum channel -\nthe so-called Pauli channel - using finite resources. It turns out that prior\nentanglement considerably enhances the fidelity of the estimation when we\ncompare it to an estimation scheme based on separable quantum states.",
    "arxiv_id": "quant-ph/0103160",
    "authors": [
      "Dietmar G. Fischer",
      "Holger Mack",
      "Markus A. Cirone",
      "Matthias Freyberger"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.64.022309",
    "title": "Enhanced Estimation of a Noisy Quantum Channel Using Entanglement",
    "url": "https://arxiv.org/abs/quant-ph/0103160"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3cd1172c-c0ed-4b8a-b009-5c1f07d3b863",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}