{
  "annotation_id": "76d885e8-ccc8-41b3-b291-2991dbf43e50",
  "date_created": "2026-03-02T18:01:56.618000Z",
  "date_modified": "2026-03-02T18:01:56.618000Z",
  "file_hash": "842086a6b968c1bf31ae2b3b639764746b5474e7aa07adf0a5524dc3d01d95e1",
  "private": false,
  "record": {
    "abstract": "We investigate distinguishability (measured by fidelity) of the initial and\nthe final state of a qubit, which is an object of the so-called nonideal\nquantum measurement of the first kind. We show that the fidelity of a nonideal\nmeasurement can be greater than the fidelity of the corresponding ideal\nmeasurement. This result is somewhat counterintuitive, and can be traced back\nto the quantum parallelism in quantum operations, in analogy with the quantum\nparallelism manifested in the quantum computing theory. In particular, while\nthe quantum parallelism in quantum computing underlies efficient quantum\nalgorithms, the quantum parallelism in quantum information theory underlies\nthis, classically unexpected, increase of the fidelity.",
    "arxiv_id": "quant-ph/0212129",
    "authors": [
      "Miroljub Dugic",
      "Milan M. Cirkovic"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Quantum Parallelism in Quantum Information Processing",
    "url": "https://arxiv.org/abs/quant-ph/0212129"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "cce20ff0-8667-49db-aea2-548759a529ca",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}