{
  "id": "0909.2443",
  "version": "v1",
  "published": "2009-09-13T20:53:22.000Z",
  "updated": "2009-09-13T20:53:22.000Z",
  "title": "Fluctuations of spin transport through chaotic quantum dots with spin-orbit coupling",
  "authors": [
    "Jacob J. Krich"
  ],
  "comment": "8 pages, 2 figures",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "As devices to control spin currents using the spin-orbit interaction are proposed and implemented, it is important to understand the fluctuations that spin-orbit coupling can impose on transmission through a quantum dot. Using random matrix theory, we estimate the typical scale of transmitted charge and spin currents when a spin current is injected into a chaotic quantum dot with strong spin-orbit coupling. These results have implications for the functioning of the spin transistor proposed by Schliemann, Egues, and Loss. We use a density matrix formalism appropriate for treating arbitrary input currents and indicate its connections to the widely used spin-conductance picture. We further consider the case of currents entangled between two leads, finding larger fluctuations.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2009-09-13T20:53:22.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "72.25.-b",
      "73.63.Kv",
      "75.47.-m",
      "85.75.-d"
    ],
    "keywords": [
      "chaotic quantum dot",
      "spin-orbit coupling",
      "spin transport",
      "fluctuations",
      "density matrix formalism appropriate"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1103/PhysRevB.80.245313",
      "journal": "Physical Review B",
      "year": 2009,
      "month": "Dec",
      "volume": 80,
      "number": 24,
      "pages": 245313
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009PhRvB..80x5313K"
    }
  }
}