{
  "annotation_id": "289a82c5-aa0a-49f9-b6b5-ebc1f0dd9266",
  "date_created": "2026-03-02T18:02:30.966000Z",
  "date_modified": "2026-03-02T18:02:30.966000Z",
  "file_hash": "124122761f668207cf5215a336ebe836fa0ba8701a255eddee7a524c8ea30fa9",
  "private": false,
  "record": {
    "abstract": "We propose a scheme that can realize a class of positive-operator-valued\nmeasures (POVMs) by performing a sequence of projective measurements on the\noriginal system, in the sense that for an arbitrary input state the probability\ndistribution of the measurement outcomes is faithfully reproduced. A necessary\nand sufficient condition for a POVM to be realizable in this way is also\nderived. In contrast to the canonical approach provided by Neumark\u0027s theorem,\nour method has the advantage of requiring no auxiliary system. Moreover, an\narbitrary POVM can be realized by utilizing our protocol on an extended space\nwhich is formed by adding only a single extra dimension.",
    "arxiv_id": "quant-ph/0608235",
    "authors": [
      "Guoming Wang",
      "Mingsheng Ying"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Realization of positive-operator-valued measures by projective   measurements without introducing ancillary dimensions",
    "url": "https://arxiv.org/abs/quant-ph/0608235"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "09596e0b-0f15-4a07-b513-b1817dfc6fb8",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}