{
  "annotation_id": "c2020ffb-86f9-4e1c-be11-6e857ee33117",
  "date_created": "2026-03-02T18:02:06.286000Z",
  "date_modified": "2026-03-02T18:02:06.286000Z",
  "file_hash": "6b6ffe0a58d7631739e19024e5b6a435806abbb48f74c4ce8172e324ffea97ce",
  "private": false,
  "record": {
    "abstract": "The modern framework of state transformers, i. e., the first Kraus\nrepresentation of quantum measurement, is introduced and related both to the\nknown textbook concepts and to measurement-interaction evolution (the second\nKraus representation). In this framework the known kinds of measurements of\nordinary (as distinct from generalized) observables are distinguished by\nnecessary and sufficient conditions. Thus, repeatable,nonrepeatable, and ideal\nmeasurements are characterized both algebraically and geometrically in terms of\npolar factors of state transformers.",
    "arxiv_id": "quant-ph/0403101",
    "authors": [
      "Fedor Herbut"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Distinguishing quantum measurements of observables in terms of state   transformers",
    "url": "https://arxiv.org/abs/quant-ph/0403101"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "08b78f2b-e46f-4ea8-a9d2-a64bcc465d29",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}