{ "id": "1306.3502", "version": "v2", "published": "2013-06-14T20:00:02.000Z", "updated": "2013-08-16T14:09:41.000Z", "title": "Inter-valley scattering induced by Coulomb interaction and disorder in carbon-nanotube quantum dots", "authors": [ "Andrea Secchi", "Massimo Rontani" ], "comment": "Revised version with a largely expanded discussion of experiments. To appear in Physical Review B", "journal": "Physical Review B 88, 125403 (2013)", "doi": "10.1103/PhysRevB.88.125403", "categories": [ "cond-mat.mes-hall" ], "abstract": "We develop a theory of inter-valley Coulomb scattering in semiconducting carbon-nanotube quantum dots, taking into account the effects of curvature and chirality. Starting from the effective-mass description of single-particle states, we study the two-electron system by fully including Coulomb interaction, spin-orbit coupling, and short-range disorder. We find that the energy level splittings associated with inter-valley scattering are nearly independent of the chiral angle and, while smaller than those due to spin-orbit interaction, large enough to be measurable.", "revisions": [ { "version": "v2", "updated": "2013-08-16T14:09:41.000Z" } ], "analyses": { "subjects": [ "73.63.Fg", "73.63.Kv", "73.23.Hk", "73.20.Qt" ], "keywords": [ "coulomb interaction", "inter-valley scattering", "semiconducting carbon-nanotube quantum dots", "inter-valley coulomb", "chiral angle" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "year": 2013, "month": "Sep", "volume": 88, "number": 12, "pages": 125403 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013PhRvB..88l5403S" } } }