{ "id": "cond-mat/0603591", "version": "v2", "published": "2006-03-22T20:09:53.000Z", "updated": "2007-02-15T20:55:11.000Z", "title": "Macroscopic vs. microscopic models of circular Quantum Dots", "authors": [ "J. Martorell", "D. W. L. Sprung" ], "comment": "original: 16 pages, 14 figures revision: reduced size to 14 pages, 13 figures", "categories": [ "cond-mat.mes-hall" ], "abstract": "The confinement mechanism of electrons in gated circular quantum dots is studied in a sequence of models, from self-consistent 3D Hartree calculations to the semiclassical model of Shikin et al. Separation of the vertical from transverse confinement allows accurate 2D Hartree calculations. For moderate size dots containing $\\sim 50$ electrons, 2D Thomas-Fermi can also be accurate. Finally, a Shikin type parameterization of the electron density allows quantitative study of the importance of the many contributions to the confinement potential.", "revisions": [ { "version": "v2", "updated": "2007-02-15T20:55:11.000Z" } ], "analyses": { "keywords": [ "microscopic models", "self-consistent 3d hartree calculations", "macroscopic", "accurate 2d hartree calculations", "gated circular quantum dots" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2006cond.mat..3591M" } } }