{ "id": "2211.14724", "version": "v1", "published": "2022-11-27T04:59:57.000Z", "updated": "2022-11-27T04:59:57.000Z", "title": "On the experimental verification of the uncertainty principle of position and momentum", "authors": [ "Thomas Schürmann", "Ingo Hoffmann", "Winfrid Görlich" ], "categories": [ "quant-ph" ], "abstract": "Historically, Kennard was the first to choose the standard deviation as a quantitative measure of uncertainty, and neither he nor Heisenberg explicitly explained why this choice should be appropriate from the experimental physical point of view. If a particle is prepared by a single slit of spatial width $\\Delta x$, it has been shown that a finite standard deviation $\\sigma_p<\\infty$ can only be ensured if the wave-function is zero at the edge of $\\Delta x$, otherwise it does not exist. Under this circumstances the corresponding sharp inequality is $\\sigma_p\\Delta x\\geq \\pi\\hbar$. This bound will be reconsidered from the mathematical point of view in terms of a variational problem in Hilbert space and will furthermore be tested in a 4f-single slit diffraction experiment of a laser beam. Our results will be compared with a laser-experiment recently given by M. F. Guasti (2022).", "revisions": [ { "version": "v1", "updated": "2022-11-27T04:59:57.000Z" } ], "analyses": { "keywords": [ "uncertainty principle", "experimental verification", "4f-single slit diffraction experiment", "finite standard deviation", "laser beam" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }