{
  "annotation_id": "c3cf8b4f-3900-473c-ab6b-2cf7598f393e",
  "date_created": "2026-03-02T18:02:27.677000Z",
  "date_modified": "2026-03-02T18:02:27.677000Z",
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  "record": {
    "abstract": "The optimal state determination (or tomography) is studied for a composite\nsystem of two qubits when measurements can be performed on one of the qubits\nand interactions of the two qubits can be implemented. The goal is to minimize\nthe number of interactions to be used. The algebraic method applied in the\npaper leads to an extension of the concept of mutually unbiased measurements.",
    "arxiv_id": "quant-ph/0605049",
    "authors": [
      "D. Petz",
      "K. M. Hangos",
      "A. Szanto",
      "F. Szollosi"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/0305-4470/39/34/020",
    "journal_ref": "J. Phys. A: Math. Gen. 39, 10901-10907, 2006.",
    "title": "State tomography for two qubits using reduced densities",
    "url": "https://arxiv.org/abs/quant-ph/0605049"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "50d68b4c-823c-469e-a994-933846371f44",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}