{ "id": "1206.4566", "version": "v1", "published": "2012-06-20T18:00:26.000Z", "updated": "2012-06-20T18:00:26.000Z", "title": "Shot noise thermometry of the quantum Hall edge states", "authors": [ "Ivan P. Levkivskyi", "Eugene V. Sukhorukov" ], "comment": "5 pages, 3 figures", "journal": "Phys. Rev. Lett. 109, 246806 (2012)", "doi": "10.1103/PhysRevLett.109.246806", "categories": [ "cond-mat.mes-hall" ], "abstract": "We use the non-equilibrium bosonization technique to investigate effects of the Coulomb interaction on quantum Hall edge states at filing factor nu=2, partitioned by a quantum point contact (QPC). We find, that due to the integrability of charge dynamics, edge states evolve to a non-equilibrium stationary state with a number of specific features. In particular, the noise temperature of a weak backscattering current between edge channels is linear in voltage bias applied at the QPC, independently of the interaction strength. In addition, it is a non-analytical function of the QPC transparency T and scales as Tln(1/T) at T<< 1. Our predictions are confirmed by exact numerical calculations.", "revisions": [ { "version": "v1", "updated": "2012-06-20T18:00:26.000Z" } ], "analyses": { "subjects": [ "73.23.-b", "03.65.Yz", "73.43.-f", "85.35.Ds" ], "keywords": [ "quantum hall edge states", "shot noise thermometry", "non-equilibrium bosonization technique", "quantum point contact", "non-equilibrium stationary state" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review Letters", "year": 2012, "month": "Dec", "volume": 109, "number": 24, "pages": 246806 }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012PhRvL.109x6806L" } } }