{
  "id": "1705.04491",
  "version": "v1",
  "published": "2017-05-12T10:00:56.000Z",
  "updated": "2017-05-12T10:00:56.000Z",
  "title": "Intra- and inter-shell Kondo effects in carbon nanotube quantum dots",
  "authors": [
    "D. Krychowski",
    "S. Lipiński"
  ],
  "comment": "17 pages, 13 figures",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.str-el"
  ],
  "abstract": "The linear response transport properties of carbon nanotube quantum dot in the strongly correlated regime are discussed. The finite-U mean field slave boson approach is used to study many-body effects. Magnetic field can rebuilt Kondo correlations, which are destroyed by the effect of spin-orbit interaction or valley mixing. Apart from the field induced revivals of SU(2) Kondo effects of different types: spin, valley or spin-valley, also more exotic phenomena appear, such as SU(3) Kondo effect. Threefold degeneracy occurs due to the effective intervalley exchange induced by short-range part of Coulomb interaction or due to the intershell mixing. In narrow gap nanotubes the full spin-orbital degeneracy might be recovered in the absence of magnetic field opening the condition for a formation of SU(4) Kondo resonance.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2017-05-12T10:00:56.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "J.2"
    ],
    "keywords": [
      "carbon nanotube quantum dot",
      "inter-shell kondo effects",
      "mean field slave boson approach",
      "finite-u mean field slave boson"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 17,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}