{
  "annotation_id": "8f7b95c2-3b50-459e-b7a7-1ad0b8230d7a",
  "date_created": "2026-03-02T18:02:23.629000Z",
  "date_modified": "2026-03-02T18:02:23.629000Z",
  "file_hash": "fc5907579224e75036406aa306e6f6367f919a95f6cf744becbc96f363789fd7",
  "private": false,
  "record": {
    "abstract": "In this thesis, I reflect on quantum instruments that measure the state of\npure finite dimensional quantum systems. As the Heisenberg principle dictates,\nthere exists a joint restriction to the information gain and distortion by\nmeasurement of a quantum system. I minimize the distortion of measurement and\nmaximize the quality of the outcome by finding the optimal (covariant)\ninstrument. In order to optimize this joint restriction, the family of\ncovariant instruments is classified. This is an important side result.",
    "arxiv_id": "quant-ph/0602086",
    "authors": [
      "Thijs van der Valk"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Optimal Trade-Off: Information Gain vs Distortion Loss In   Finite-Dimensional Quantum Systems",
    "url": "https://arxiv.org/abs/quant-ph/0602086"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c13e3f6d-68b1-434e-be6a-ab96c38b18d1",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}