{
  "id": "quant-ph/9903067",
  "version": "v1",
  "published": "1999-03-19T17:47:14.000Z",
  "updated": "1999-03-19T17:47:14.000Z",
  "title": "Reconstructing the density matrix of a spin s through Stern-Gerlach measurements (II)",
  "authors": [
    "Jean-Pierre Amiet",
    "Stefan Weigert"
  ],
  "comment": "Latex, 8 pages",
  "journal": "J. Phys. A 32 (1999) L269",
  "doi": "10.1088/0305-4470/32/25/101",
  "categories": [
    "quant-ph"
  ],
  "abstract": "The density matrix of a spin s is fixed uniquely if the probabilities to obtain the value s upon measuring n.S are known for 4s(s+1) appropriately chosen directions n in space. These numbers are just the expectation values of the density operator in coherent spin states, and they can be determined in an experiment carried out with a Stern-Gerlach apparatus. Furthermore, the experimental data can be inverted providing thus a parametrization of the statistical operator by 4s(s+1) positive parameters.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1999-03-19T17:47:14.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "density matrix",
      "stern-gerlach measurements",
      "coherent spin states",
      "expectation values",
      "stern-gerlach apparatus"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "LaTeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 497045
    }
  }
}