{
  "id": "1703.05525",
  "version": "v1",
  "published": "2017-03-16T09:21:14.000Z",
  "updated": "2017-03-16T09:21:14.000Z",
  "title": "Thermoelectric Transport through SU(N) Kondo Impurity",
  "authors": [
    "D. B. Karki",
    "M. N. Kiselev"
  ],
  "comment": "8 pages including supplement, 3+1 figure",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We investigate thermoelectric transport through a SU(N) quantum impurity in the Kondo regime. The strong coupling fixed point theory is described by the local Fermi-liquid paradigm. Using Keldysh technique we analyse the electric current through the quantum impurity at both finite bias voltage and finite temperature drop across it. The theory of a steady state at zero-current provides a complete description of the Seebeck effect. We find pronounced non-linear effects in temperature drop at low temperatures. We illustrate the significance of the non-linearities for enhancement of thermopower by two examples of SU(4) symmetric regimes characterized by a filling factor m: i) particle-hole symmetric at m=2 and ii) particle-hole non-symmetric at m=1. We analyse the effects of potential scattering and coupling asymmetry on the transport coefficients. We discuss connections between the theory and transport experiments with coupled quantum dots and carbon nanotubes.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2017-03-16T09:21:14.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "thermoelectric transport",
      "kondo impurity",
      "quantum impurity",
      "strong coupling fixed point theory",
      "local fermi-liquid paradigm"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}