{
  "id": "cond-mat/0411638",
  "version": "v1",
  "published": "2004-11-25T11:04:24.000Z",
  "updated": "2004-11-25T11:04:24.000Z",
  "title": "DC Josephson Effect in a Tomonaga-Luttinger Liquid",
  "authors": [
    "Yositake Takane"
  ],
  "comment": "18 pages",
  "journal": "J. Phys. Soc. Jpn. 71 (2002) 550",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "The dc Josephson effect in a one-dimensional Tomonaga-Luttinger (TL) liquid is studied on the basis of two bosonized models. We first consider a TL liquid sandwiched between two superconductors with a strong barrier at each interface. Both the interfaces are assumed to be perfect if the barrier potential is absent. We next consider a TL liquid with open boundaries, weakly coupled with two superconductors. Without putting strong barriers, we instead assume that the coupling at each interface is described by a tunnel junction. We calculate the Josephson current in each model, and find that the two models yield same results. The Josephson current is suppressed by repulsive electron-electron interactions. It is shown that the suppression is characterized by only the correlation exponent for the charge degrees of freedom. This result is inconsistent with a previously reported result, where the spin degrees of freedom also affects the suppression. The reason of this inconsistency is discussed.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2004-11-25T11:04:24.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "dc josephson effect",
      "tomonaga-luttinger liquid",
      "strong barrier",
      "josephson current",
      "tl liquid"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1143/JPSJ.71.550",
      "journal": "Journal of the Physical Society of Japan",
      "year": 2002,
      "month": "Feb",
      "volume": 71,
      "number": 2,
      "pages": 550
    },
    "note": {
      "typesetting": "TeX",
      "pages": 18,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2002JPSJ...71..550T"
    }
  }
}