{ "id": "0708.0539", "version": "v2", "published": "2007-08-03T17:48:10.000Z", "updated": "2007-08-07T00:47:10.000Z", "title": "Transmission in double quantum dots in the Kondo regime: Quantum-critical transitions and interference effects", "authors": [ "Luis G. Dias da Silva", "Nancy Sandler", "Kevin Ingersent", "Sergio E. Ulloa" ], "comment": "4 pages, 3 figures; Submitted to Physica E (EP2DS-17 proceedings, oral presentation), updated Refs", "journal": "Physica E 40 1002-1005 (2008).", "doi": "10.1016/j.physe.2007.08.098", "categories": [ "cond-mat.mes-hall", "cond-mat.str-el" ], "abstract": "We study the transmission through a double quantum-dot system in the Kondo regime. An exact expression for the transmission coefficient in terms of fully interacting many-body Green's functions is obtained. By mapping the system into an effective Anderson impurity model, one can determine the transmission using numerical renormalization-group methods. The transmission exhibits signatures of the different Kondo regimes of the effective model, including an unusual Kondo phase with split peaks in the spectral function, as well as a pseudogapped regime exhibiting a quantum critical transition between Kondo and unscreened phases.", "revisions": [ { "version": "v2", "updated": "2007-08-07T00:47:10.000Z" } ], "analyses": { "keywords": [ "kondo regime", "double quantum dots", "interference effects", "transmission", "quantum-critical transitions" ], "tags": [ "journal article" ], "publication": { "journal": "Physica E Low-Dimensional Systems and Nanostructures", "year": 2008, "month": "Mar", "volume": 40, "number": 5, "pages": 1002 }, "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008PhyE...40.1002D" } } }