{
  "annotation_id": "40fe2e13-f249-451f-b884-9fe316356987",
  "date_created": "2026-03-02T18:01:49.433000Z",
  "date_modified": "2026-03-02T18:01:49.433000Z",
  "file_hash": "5d5d480c4f0b1ad792369f54867b784c4fe7b5ea1523518b0049a8702a0c45b2",
  "private": false,
  "record": {
    "abstract": "We discuss a possibility to build a programmable quantum measurement device\n(a \"quantum multimeter\"). That is, a device that would be able to perform\nvarious desired generalized, positive operator value measure (POVM)\nmeasurements depending on a quantum state of a \"program register\". As an\nexample, we present a \"universal state discriminator\". It serves for the\nunambiguous discrimination of a pair of known non-orthogonal states (from a\ncertain set). If the two states are changed the apparatus can be switched via\nthe choice of the program register to discriminate the new pair of states\nunambiguously. The proper POVM is determined by the state of an auxiliary\nquantum system. The probability of successful discrimination is not optimal for\nall pairs of non-orthogonal states from the given set. However, for some\nsubsets it can be very close to the optimal value.",
    "arxiv_id": "quant-ph/0201097",
    "authors": [
      "Miloslav Dusek",
      "Vladimir Buzek"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.66.022112",
    "title": "Quantum multimeters: A programmable state discriminator",
    "url": "https://arxiv.org/abs/quant-ph/0201097"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4c66d5d0-dc0b-4dbf-911f-51d1dac43ea2",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}