{ "id": "1307.0479", "version": "v1", "published": "2013-07-01T18:52:15.000Z", "updated": "2013-07-01T18:52:15.000Z", "title": "Uncertainty principle in a cavity at finite temperature", "authors": [ "A. P. C. Malbouisson" ], "comment": "5 pages, 1 figure, version as accepted to be published in Phys. Rev. A", "journal": "Phys. Rev. A 88, 014101 (2013)", "doi": "10.1103/PhysRevA.88.014101", "categories": [ "quant-ph", "cond-mat.mes-hall", "hep-th" ], "abstract": "We employ a dressed state approach to perform a study on the behavior of the uncertainty principle for a system in a heated cavity. We find, in a small cavity for a given temperature, an oscillatory behavior of the momentum--coordinate product, $(\\Delta\\,p)\\,(\\Delta\\,q)$, which attains periodically finite absolute minimum (maximum) values, no matter large is the elapsed time. This behavior is in a sharp contrast with what happens in free space, in which case, the product $(\\Delta\\,p)\\,(\\Delta\\,q)$ tends asymptotically, for each temperature, to a constant value, independent of time.", "revisions": [ { "version": "v1", "updated": "2013-07-01T18:52:15.000Z" } ], "analyses": { "subjects": [ "03.65.Ta" ], "keywords": [ "uncertainty principle", "finite temperature", "attains periodically finite absolute minimum", "momentum-coordinate product", "small cavity" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. A" }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1240727, "adsabs": "2013arXiv1307.0479M" } } }