{ "id": "1404.3770", "version": "v2", "published": "2014-04-14T22:28:17.000Z", "updated": "2014-05-13T17:22:42.000Z", "title": "The Kondo Temperature of SU(4) Symmetric Quantum Dots", "authors": [ "Michele Filippone", "Catalin Pascu Moca", "Gergely Zarand", "Christophe Mora" ], "comment": "4 pages, 5 figures and Suppl. Material", "categories": [ "cond-mat.mes-hall" ], "abstract": "A path integral approach is used to derive a closed analytical expression for the Kondo temperature of the SU(4) symmetrical Anderson model. In contrast to the SU(2) case, the prefactor of the Kondo temperature is found to display a peculiar orbital energy (gate voltage) dependence, reflecting the presence of various SU(4) mixed valence fixed points. Our analytical expressions are tested against and confirmed by numerical renormalization group computations.", "revisions": [ { "version": "v2", "updated": "2014-05-13T17:22:42.000Z" } ], "analyses": { "subjects": [ "71.10.Ay", "73.63.Kv", "72.15.Qm" ], "keywords": [ "kondo temperature", "symmetric quantum dots", "analytical expression", "path integral approach", "peculiar orbital energy" ], "tags": [ "journal article" ], "publication": { "doi": "10.1103/PhysRevB.90.121406", "journal": "Physical Review B", "year": 2014, "month": "Sep", "volume": 90, "number": 12, "pages": 121406 }, "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014PhRvB..90l1406F" } } }