{
  "id": "0903.4415",
  "version": "v2",
  "published": "2009-03-25T18:28:25.000Z",
  "updated": "2009-06-09T16:52:21.000Z",
  "title": "Fractional quantum Hall state at ν=1/4 in a wide quantum well",
  "authors": [
    "Z. Papic",
    "G. Moller",
    "M. V. Milovanovic",
    "N. Regnault",
    "M. O. Goerbig"
  ],
  "comment": "14 pages, 8 figures; minor changes, accepted for publication in Phys. Rev. B",
  "journal": "Phys. Rev. B 79, 245325 (2009)",
  "doi": "10.1103/PhysRevB.79.245325",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.str-el"
  ],
  "abstract": "We investigate, with the help of Monte-Carlo and exact-diagonalization calculations in the spherical geometry, several compressible and incompressible candidate wave functions for the recently observed quantum Hall state at the filling factor $\\nu=1/4$ in a wide quantum well. The quantum well is modeled as a two-component system by retaining its two lowest subbands. We make a direct connection with the phenomenological effective-bilayer model, which is commonly used in the description of a wide quantum well, and we compare our findings with the established results at $\\nu=1/2$ in the lowest Landau level. At $\\nu=1/4$, the overlap calculations for the Halperin (5,5,3) and (7,7,1) states, the generalized Haldane-Rezayi state and the Moore-Read Pfaffian, suggest that the incompressible state is likely to be realized in the interplay between the Halperin (5,5,3) state and the Moore-Read Pfaffian. Our numerics shows the latter to be very susceptible to changes in the interaction coefficients, thus indicating that the observed state is of multicomponent nature.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2009-06-09T16:52:21.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "73.43.Cd",
      "73.21.Fg",
      "71.10.Pm"
    ],
    "keywords": [
      "fractional quantum hall state",
      "wide quantum",
      "moore-read pfaffian",
      "incompressible candidate wave functions",
      "lowest landau level"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2009,
      "month": "Jun",
      "volume": 79,
      "number": 24,
      "pages": 245325
    },
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009PhRvB..79x5325P"
    }
  }
}