{
  "id": "1702.07264",
  "version": "v1",
  "published": "2017-02-23T15:44:25.000Z",
  "updated": "2017-02-23T15:44:25.000Z",
  "title": "On the upper bound of classical correlations in a bipartite quantum system",
  "authors": [
    "Theresa Christ",
    "Haye Hinrichsen"
  ],
  "comment": "LaTeXPDF, 4 pages, 1 figure",
  "categories": [
    "quant-ph"
  ],
  "abstract": "For a bipartite quantum system consisting of subsystems A and B it was shown in J. Phys. A: Math. Theor. 45 (2012) 025301 that the amount of classical correlations, which is used to define quantum discord, is bounded from above by the minimum of the von Neumann entropies of the subsystems A and B. We provide an alternative proof that is generalized to POVMs and that is more transparent as it works without defining correlation matrices.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2017-02-23T15:44:25.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "classical correlations",
      "upper bound",
      "von neumann entropies",
      "define quantum discord",
      "subsystems"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}