{
  "annotation_id": "7d94faaf-5572-4bc3-8462-42a332029acb",
  "date_created": "2026-03-02T18:02:13.761000Z",
  "date_modified": "2026-03-02T18:02:13.761000Z",
  "file_hash": "7aae15a7ffbbc32fc09604b6122038db36b31677dc86a2e95930b276af14f41a",
  "private": false,
  "record": {
    "abstract": "We experimentally demonstrate in NMR a quantum interferometric multi-meter\nfor extracting certain properties of unknown quantum states without resource to\nquantum tomography. It can perform direct state determinations,\neigenvalue/eigenvector estimations, purity tests of a quantum system, as well\nas the overlap of any two unknown quantum states. Using the same device, we\nalso demonstrate one-qubit quantum fingerprinting.",
    "arxiv_id": "quant-ph/0411180",
    "authors": [
      "Jiangfeng Du",
      "Ping Zou",
      "Daniel K. L. Oi",
      "Xinhua Peng",
      "L. C. Kwek",
      "C. H. Oh",
      "Artur Ekert"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Experimental Demonstration of Quantum State Multi-meter and One-qubit   Fingerprinting in a Single Quantum Device",
    "url": "https://arxiv.org/abs/quant-ph/0411180"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "57d47c89-a869-49c6-8c31-5b7a0d5fadfc",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}