{
  "id": "0801.1814",
  "version": "v2",
  "published": "2008-01-11T17:59:45.000Z",
  "updated": "2008-04-18T21:22:35.000Z",
  "title": "Weak measurement: Effect of the detector dynamics",
  "authors": [
    "Antonio Di Lorenzo",
    "J. Carlos Egues"
  ],
  "comment": "5 pages, 3 figures. References added. Minor revisions",
  "journal": "Phys. Rev. A 77, 042108 (2008) (5 pages)",
  "doi": "10.1103/PhysRevA.77.042108",
  "categories": [
    "quant-ph",
    "cond-mat.other"
  ],
  "abstract": "A general approach to the measurement of an observable with pre- and post-selection is presented. The limit of weak measurement is studied in detail, and it is shown that the phase of the probe, including a Hamiltonian contribution to it, gives rise to observable effects, since the coherence of the probe is essential for the concept of complex weak value to be meaningful. As a particular example, the measurement of a spin component is considered. We find that the contribution of the imaginary part of the weak value is sizeable in this case.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2008-04-18T21:22:35.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.65.Ta",
      "03.65.Wj"
    ],
    "keywords": [
      "weak measurement",
      "detector dynamics",
      "complex weak value",
      "general approach",
      "imaginary part"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review A",
      "year": 2008,
      "month": "Apr",
      "volume": 77,
      "number": 4,
      "pages": "042108"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2008PhRvA..77d2108D"
    }
  }
}