{
  "annotation_id": "3868bce6-edd2-41c1-b80a-53da850e093d",
  "date_created": "2026-03-02T18:02:17.049000Z",
  "date_modified": "2026-03-02T18:02:17.049000Z",
  "file_hash": "13dd919831b279284c37bf9e5159dd5ee77debe8aeb22664ffb2150929f2f06c",
  "private": false,
  "record": {
    "abstract": "Quantum tomography is a procedure to determine the quantum state of a\nphysical system, or equivalently, to estimate the expectation value of any\noperator. It consists in appropriately averaging the outcomes of the\nmeasurement results of different observables, obtained on identical copies of\nthe same system. Alternatively, it consists in maximizing an appropriate\nlikelihood function defined on the same data. The procedure can be also used to\ncompletely characterize an unknown apparatus. Here we focus on the\nelectromagnetic field, where the tomographic observables are obtained from\nhomodyne detection.",
    "arxiv_id": "quant-ph/0507078",
    "authors": [
      "G. M. D\u0027Ariano",
      "L. Maccone",
      "M. F. Sacchi"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1142/9781860948169_0008",
    "journal_ref": "\"Quantum Information with Continuous Variables of Atoms and\n  Light\", ed. by N. J. Cerf, G. Leuchs, and E. S. Polzik (Imperial College\n  Press, London 2007), pp. 141-158",
    "title": "Homodyne tomography and the reconstruction of quantum states of light",
    "url": "https://arxiv.org/abs/quant-ph/0507078"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "043954b0-03a1-4288-9adc-b4ec850d6f09",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}