{
  "id": "0911.4908",
  "version": "v1",
  "published": "2009-11-25T16:33:54.000Z",
  "updated": "2009-11-25T16:33:54.000Z",
  "title": "Universal Resistances of the Quantum RC circuit",
  "authors": [
    "Christophe Mora",
    "Karyn Le Hur"
  ],
  "comment": "12 pages, 3 figures",
  "journal": "Nature Physics 6, 697 (2010)",
  "doi": "10.1038/nphys1690",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.str-el"
  ],
  "abstract": "We examine the concept of universal quantized resistance in the AC regime through the fully coherent quantum RC circuit comprising a cavity (dot) capacitively coupled to a gate and connected via a single spin-polarized channel to a reservoir lead. As a result of quantum effects such as the Coulomb interaction in the cavity and global phase coherence, we show that the charge relaxation resistance $R_q$ is identical for weak and large transmissions and it changes from $h/2e^2$ to $h/e^2$ when the frequency (times $\\hbar$) exceeds the level spacing of the cavity; $h$ is the Planck constant and $e$ the electron charge. For large cavities, we formulate a correspondence between the charge relaxation resistance $h/e^2$ and the Korringa-Shiba relation of the Kondo model. Furthermore, we introduce a general class of models, for which the charge relaxation resistance is universal. Our results emphasize that the charge relaxation resistance is a key observable to understand the dynamics of strongly correlated systems.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2009-11-25T16:33:54.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "charge relaxation resistance",
      "universal resistances",
      "fully coherent quantum rc circuit",
      "global phase coherence",
      "coherent quantum rc circuit comprising"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "Nature Physics",
      "year": 2010,
      "month": "Sep",
      "volume": 6,
      "number": 9,
      "pages": 697
    },
    "note": {
      "typesetting": "TeX",
      "pages": 12,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2010NatPh...6..697M"
    }
  }
}