{
  "id": "1007.0228",
  "version": "v3",
  "published": "2010-07-01T18:17:59.000Z",
  "updated": "2011-06-15T22:26:45.000Z",
  "title": "Entanglement irreversibility from quantum discord and quantum deficit",
  "authors": [
    "Marcio F. Cornelio",
    "Marcos C. de Oliveira",
    "Felipe F. Fanchini"
  ],
  "comment": "Typos corrected. Improved figures. To appear in PRL",
  "journal": "Phys. Rev. Lett. 107 020502 (2011)",
  "doi": "10.1103/PhysRevLett.107.020502",
  "categories": [
    "quant-ph"
  ],
  "abstract": "We relate the problem of irreversibility of entanglement with the recently defined measures of quantum correlation - quantum discord and one-way quantum deficit. We show that the entanglement of formation is always strictly larger than the coherent information and the entanglement cost is also larger in most cases. We prove irreversibility of entanglement under LOCC for a family of entangled states. This family is a generalization of the maximally correlated states for which we also give an analytic expression for the distillable entanglement, the relative entropy of entanglement, the distillable secret key and the quantum discord.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2011-06-15T22:26:45.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.67.Mn",
      "03.65.Ud",
      "03.65.Yz"
    ],
    "keywords": [
      "quantum discord",
      "entanglement irreversibility",
      "one-way quantum deficit",
      "quantum correlation",
      "analytic expression"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2011,
      "month": "Jul",
      "volume": 107,
      "number": 2,
      "pages": "020502"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2011PhRvL.107b0502C"
    }
  }
}