{
  "id": "0712.0960",
  "version": "v1",
  "published": "2007-12-06T15:15:44.000Z",
  "updated": "2007-12-06T15:15:44.000Z",
  "title": "Persistent current of correlated electrons in mesoscopic ring with impurity",
  "authors": [
    "Roman Krcmar",
    "Andrej Gendiar",
    "Martin Mosko",
    "Radoslav Nemeth",
    "Pavel Vagner",
    "Lubos Mitas"
  ],
  "comment": "Conference proceedings. Accepted for publication in Physica E",
  "journal": "Physica E 40 (2008) 1507",
  "doi": "10.1016/j.physe.2007.09.074",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "The persistent current of correlated electrons in a continuous one-dimensional ring with a single scatterer is calculated by solving the many-body Schrodinger equation for several tens of electrons interacting via the electron-electron (e-e) interaction of finite range. The problem is solved by the configuration-interaction (CI) and diffusion Monte Carlo (DMC) methods. The CI and DMC results are in good agreement. In both cases, the persistent current $I$ as a function of the ring length $L$ exhibits the asymptotic dependence $I \\propto L^{-1-\\alpha}$ typical of the Luttinger liquid, where the power $\\alpha$ depends only on the e-e interaction. The numerical values of $\\alpha$ agree with the known formula of the renormalisation-group theory.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2007-12-06T15:15:44.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "persistent current",
      "correlated electrons",
      "mesoscopic ring",
      "many-body schrodinger equation",
      "diffusion monte carlo"
    ],
    "tags": [
      "conference paper",
      "journal article"
    ],
    "publication": {
      "journal": "Physica E Low-Dimensional Systems and Nanostructures",
      "year": 2008,
      "month": "Mar",
      "volume": 40,
      "number": 5,
      "pages": 1507
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2008PhyE...40.1507K"
    }
  }
}