{
  "id": "cond-mat/9908251",
  "version": "v1",
  "published": "1999-08-17T19:41:20.000Z",
  "updated": "1999-08-17T19:41:20.000Z",
  "title": "Dissipationless transport in low density bilayer systems",
  "authors": [
    "Ady Stern",
    "S. Das Sarma",
    "Matthew P. A. Fisher",
    "S. M. Girvin"
  ],
  "comment": "4 pages, no figures, submitted to Phys. Rev. Lett",
  "doi": "10.1103/PhysRevLett.84.139",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "In a bilayer electronic system the layer index may be viewed as the z-component of an isospin-1/2. An XY isospin-ordered ferromagnetic phase was observed in quantum Hall systems and is predicted to exist at zero magnetic field at low density. This phase is a superfluid for opposite currents in the two layers. At B=0 the system is gapless but superfluidity is not destroyed by weak disorder. In the quantum Hall case, weak disorder generates a random gauge field which probably does not destroy superfluidity. Experimental signatures include Coulomb drag and collective mode measurements.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1999-08-17T19:41:20.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "low density bilayer systems",
      "dissipationless transport",
      "bilayer electronic system",
      "quantum hall systems",
      "zero magnetic field"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}