{ "id": "cond-mat/0106469", "version": "v2", "published": "2001-06-22T17:50:55.000Z", "updated": "2001-06-23T07:05:24.000Z", "title": "Transmission Phase of a Quantum Dot with Kondo Correlation Near the Unitary Limit", "authors": [ "Yang Ji", "M. Heiblum", "Hadas Shtrikman" ], "comment": "4 pages, 4 figures", "journal": "Phys. Rev. Lett., 88 (2002) 076601", "doi": "10.1103/PhysRevLett.88.076601", "categories": [ "cond-mat.mes-hall", "cond-mat.str-el" ], "abstract": "The complex transmission amplitude -- both magnitude and phase -- of a quantum dot (QD) with Kondo correlation was measured near the unitary limit. Contrary to previous phase measurements, performed far from this limit [Ji et al., Science 290, 779 (2000)], the transmission phase was observed to evolve linearly over a range of about 1.5 pi when the Fermi energy was scanned through a Kondo pair -- a pair of spin degenerate energy levels. Moreover, the phase in Coulomb blockade (CB) peak, adjancent to the Kondo pair, retained a memory of the Kondo correlation and did not exhibit the familiar behavior in the CB regime. These results do not agree with theoretical predictions, suggesting that a full explanation may go beyond the framework of the Anderson model.", "revisions": [ { "version": "v2", "updated": "2001-06-23T07:05:24.000Z" } ], "analyses": { "keywords": [ "kondo correlation", "transmission phase", "quantum dot", "unitary limit", "spin degenerate energy levels" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable" } } }