{ "id": "1110.1570", "version": "v2", "published": "2011-10-07T15:45:51.000Z", "updated": "2012-01-26T18:08:28.000Z", "title": "Quantum Noise Measurement of a Carbon Nanotube Quantum Dot in the Kondo Regime", "authors": [ "Julien Basset", "Alik Kasumov", "Pascu Moca", "Gergely Zarand", "Pascal Simon", "Helene Bouchiat", "Richard Deblock" ], "comment": "6 pages, 4 figures", "journal": "Phys. Rev. Lett. 108, 046802 (2012)", "doi": "10.1103/PhysRevLett.108.046802", "categories": [ "cond-mat.mes-hall" ], "abstract": "The current emission noise of a carbon nanotube quantum dot in the Kondo regime is measured at frequencies $\\nu$ of the order or higher than the frequency associated with the Kondo effect $k_B T_K/h$, with $T_K$ the Kondo temperature. The carbon nanotube is coupled via an on-chip resonant circuit to a quantum noise detector, a superconductor-insulator-superconductor junction. We find for $h \\nu \\approx k_B T_K$ a Kondo effect related singularity at a voltage bias $eV \\approx h \\nu $, and a strong reduction of this singularity for $h \\nu \\approx 3 k_B T_K$, in good agreement with theory. Our experiment constitutes a new original tool for the investigation of the non-equilibrium dynamics of many-body phenomena in nanoscale devices.", "revisions": [ { "version": "v2", "updated": "2012-01-26T18:08:28.000Z" } ], "analyses": { "subjects": [ "73.23.-b", "05.40.Ca", "72.15.Qm", "73.63.Fg" ], "keywords": [ "carbon nanotube quantum dot", "quantum noise measurement", "kondo regime", "on-chip resonant circuit", "kondo effect related singularity" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review Letters", "year": 2012, "month": "Jan", "volume": 108, "number": 4, "pages": "046802" }, "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012PhRvL.108d6802B" } } }