{ "id": "cond-mat/0503552", "version": "v1", "published": "2005-03-22T15:29:34.000Z", "updated": "2005-03-22T15:29:34.000Z", "title": "Electron transport and current fluctuations in short coherent conductors", "authors": [ "Dmitri S. Golubev", "Artem V. Galaktionov", "Andrei D. Zaikin" ], "comment": "16 pages, 4 figures", "doi": "10.1103/PhysRevB.72.205417", "categories": [ "cond-mat.mes-hall" ], "abstract": "Employing a real time effective action formalism we analyze electron transport and current fluctuations in comparatively short coherent conductors in the presence of electron-electron interactions. We demonstrate that, while Coulomb interaction tends to suppress electron transport, it may {\\it strongly enhance} shot noise in scatterers with highly transparent conducting channels. This effect of excess noise is governed by the Coulomb gap observed in the current-voltage characteristics of such scatterers. We also analyze the frequency dispersion of higher current cumulants and emphasize a direct relation between electron-electron interaction effects and current fluctuations in disordered mesoscopic conductors.", "revisions": [ { "version": "v1", "updated": "2005-03-22T15:29:34.000Z" } ], "analyses": { "keywords": [ "current fluctuations", "real time effective action formalism", "analyze electron transport", "electron-electron interaction effects", "comparatively short coherent conductors" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. B" }, "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable" } } }