{
  "id": "cond-mat/0307444",
  "version": "v1",
  "published": "2003-07-17T22:20:43.000Z",
  "updated": "2003-07-17T22:20:43.000Z",
  "title": "Dynamical Coulomb blockade and spin-entangled electrons",
  "authors": [
    "Patrik Recher",
    "Daniel Loss"
  ],
  "comment": "5 pages, 2 figures",
  "journal": "Phys. Rev. Lett. 91, 267003 (2003)",
  "doi": "10.1103/PhysRevLett.91.267003",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.supr-con"
  ],
  "abstract": "We consider the production of mobile and nonlocal pairwise spin-entangled electrons from tunneling of a BCS-superconductor (SC) to two normal Fermi liquid leads. The necessary mechanism to separate the two electrons coming from the same Cooper pair (spin-singlet) is achieved by coupling the SC to leads with a finite resistance. The resulting dynamical Coulomb blockade effect, which we describe phenomenologically in terms of an electromagnetic environment, is shown to be enhanced for tunneling of two spin-entangled electrons into the same lead compared to the process where the pair splits and each electron tunnels into a different lead. On the other hand in the pair-split process, the spatial correlation of a Cooper pair leads to a current suppression as a function of distance between the two tunnel junctions which is weaker for effectively lower dimensional SCs.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2003-07-17T22:20:43.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "spin-entangled electrons",
      "cooper pair",
      "normal fermi liquid",
      "effectively lower dimensional scs",
      "resulting dynamical coulomb blockade effect"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}