{ "id": "1106.3104", "version": "v2", "published": "2011-06-15T21:28:02.000Z", "updated": "2011-08-03T19:36:10.000Z", "title": "Kondo effect given exactly by density functional theory", "authors": [ "Justin P. Bergfield", "Zhenfei Liu", "Kieron Burke", "Charles A. Stafford" ], "comment": "5 pages, 4 figures", "categories": [ "cond-mat.mes-hall", "cond-mat.other" ], "abstract": "Transport through an Anderson junction (two macroscopic electrodes coupled to an Anderson impurity) is dominated by a Kondo peak in the spectral function at zero temperature. The exact single-particle Kohn-Sham potential of density functional theory reproduces the linear transport exactly, despite the lack of a Kondo peak in its spectral function. Using Bethe ansatz techniques, we calculate this potential exactly for all coupling strengths, including the cross-over from mean-field behavior to charge quantization caused by the derivative discontinuity. A simple and accurate interpolation formula is also given.", "revisions": [ { "version": "v2", "updated": "2011-08-03T19:36:10.000Z" } ], "analyses": { "keywords": [ "kondo effect", "kondo peak", "density functional theory reproduces", "exact single-particle kohn-sham potential", "spectral function" ], "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1106.3104B" } } }