{ "id": "1211.1843", "version": "v2", "published": "2012-11-08T13:05:06.000Z", "updated": "2013-05-15T09:10:16.000Z", "title": "Semiclassical theory of the interaction correction to the conductance of antidot arrays", "authors": [ "Martin Schneider", "Georg Schwiete", "Piet W. Brouwer" ], "comment": "20 pages, 10 figures, published version", "journal": "Phys. Rev. B 87, 195406 (2013)", "categories": [ "cond-mat.mes-hall" ], "abstract": "Electron-electron interactions are responsible for a correction to the conductance of a diffusive metal, the \"Altshuler-Aronov correction\" $\\delta G_{AA}$. Here we study the counterpart of this correction for a ballistic conductor, in which the electron motion is governed by chaotic classical dynamics. In the ballistic conductance, the Ehrenfest time $\\tau_{E}$ enters as an additional time scale that determines the magnitude of quantum interference effects. The Ehrenfest time effectively poses a short-time threshold for the trajectories contributing to the interaction correction. As a consequence, $\\delta G_{AA}$ becomes exponentially suppressed if the Ehrenfest time is larger than the dwell time or the inverse temperature. We discuss the explicit dependence on Ehrenfest time in quasi-one and two-dimensional antidot arrays. For strong interactions, the sign of $\\delta G_{AA}$ may change as a function of temperature for temperatures in the vicinity of $\\hbar/\\tau_{E}$.", "revisions": [ { "version": "v2", "updated": "2013-05-15T09:10:16.000Z" } ], "analyses": { "subjects": [ "73.23.-b", "05.45.Mt" ], "keywords": [ "interaction correction", "semiclassical theory", "conductance", "additional time scale", "quantum interference effects" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "doi": "10.1103/PhysRevB.87.195406", "year": 2013, "month": "May", "volume": 87, "number": 19, "pages": 195406 }, "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013PhRvB..87s5406S" } } }