{
  "annotation_id": "3dd16dcb-794c-4416-ac9c-e730cb68f0c5",
  "date_created": "2026-03-02T18:02:09.614000Z",
  "date_modified": "2026-03-02T18:02:09.614000Z",
  "file_hash": "8a57610d5b6b320c5386b1a21efd348b673a66efd621a0e627074cb579ad2dd8",
  "private": false,
  "record": {
    "abstract": "The use of nuclear magnetic resonance (NMR) to carry out quantum information\nprocessing (QIP) often requires the preparation, transformation, and detection\nof pseudopure states. In our previous work, it was shown that the use of pairs\nof pseudopure states (POPS) as a basis for QIP is very convenient because of\nthe simplicity in experimental execution. It is now further demonstrated that\nthe product of the NMR spectra corresponding to two sets of POPS that share a\ncommon pseudopure state has the same peak frequencies as those of the common\n(single) pseudopure state. Examples of applying two different quantum logic\ngates to a 5-qubit system are given.",
    "arxiv_id": "quant-ph/0407194",
    "authors": [
      "B. M. Fung",
      "Vladimir L. Ermakov"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1063/1.1792594",
    "title": "A simple method for the preparation of pseudopure states in NMR quantum   information processing",
    "url": "https://arxiv.org/abs/quant-ph/0407194"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a7083f50-879d-4e38-9725-23cb58a2e322",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}