{
  "id": "quant-ph/9905039",
  "version": "v2",
  "published": "1999-05-11T15:00:06.000Z",
  "updated": "1999-10-19T18:57:15.000Z",
  "title": "Experimental realization of Popper's Experiment: Violation of the Uncertainty Principle?",
  "authors": [
    "Yoon-Ho Kim",
    "Yanhua Shih"
  ],
  "comment": "6 pages, twocolumn. Revised. To appear in Foundations of Physics",
  "journal": "Found.Phys. 29 (1999) 1849",
  "categories": [
    "quant-ph"
  ],
  "abstract": "An entangled pair of photons (1 and 2) are emitted to opposite directions. A narrow slit is placed in the path of photon 1 to provide precise knowledge of its position on the $y$ axis and this also determines the precise $y$ position of its twin, photon 2, due to quantum entanglement. Is photon 2 going to experience a greater uncertainty in momentum, i.e., a greater $\\Delta p_{y}$, due to the precise knowledge of its position $y$? The experimental data shows $\\Delta y\\Delta p_{y}<\\hbar $ for photon 2. Can this recent realization of the historical thought experiment of Karl Popper signal a violation of the uncertainty principle?",
  "revisions": [
    {
      "version": "v2",
      "updated": "1999-10-19T18:57:15.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "uncertainty principle",
      "poppers experiment",
      "experimental realization",
      "precise knowledge",
      "karl popper signal"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1023/A:1018890316979"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 501081,
      "adsabs": "1999quant.ph..5039K"
    }
  }
}