{
  "annotation_id": "7f736f7b-7e3b-4e3d-b1c6-7481a0000cf3",
  "date_created": "2026-03-02T18:02:44.905000Z",
  "date_modified": "2026-03-02T18:02:44.905000Z",
  "file_hash": "4262bb2c045ec74515858c7e7969e3bb9079da7aa7826d300d9ed21484a7fdf9",
  "private": false,
  "record": {
    "abstract": "Coherent states provide an appealing method to reconstruct efficiently a pure\nstate of a quantum mechanical spin s. A Stern-Gerlach apparatus is used to\nmeasure (4s+1) expectations of projection operators on appropriate coherent\nstates in the unknown state. These measurements are compatible with a finite\nnumber of states which can be distinguished, in the generic case, by measuring\none more probability. In addition, the present technique shows that the zeroes\nof a Husimi distribution do have an operational meaning: they can be identified\ndirectly by measurements with a Stern-Gerlach apparatus. This result comes down\nto saying that it is possible to resolve experimentally structures in quantum\nphase-space which are smaller than hbar.",
    "arxiv_id": "quant-ph/9904036",
    "authors": [
      "Jean-Pierre Amiet",
      "Stefan Weigert"
    ],
    "categories": [
      "quant-ph"
    ],
    "journal_ref": "J. Opt. B 1 (1999) L5",
    "title": "Coherent States and the Reconstruction of Pure Spin States",
    "url": "https://arxiv.org/abs/quant-ph/9904036"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0d633632-e466-4ac9-af98-fa8b7c42d9bb",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}