{
  "id": "1403.6929",
  "version": "v2",
  "published": "2014-03-27T06:57:57.000Z",
  "updated": "2014-03-28T07:52:19.000Z",
  "title": "Upper Bound on Singlet Fraction of Two Qubit Mixed Entangled States",
  "authors": [
    "Satyabrata Adhikari",
    "Atul Kumar"
  ],
  "comment": "4 pages, 1 figure",
  "categories": [
    "quant-ph",
    "cs.IT",
    "math.IT"
  ],
  "abstract": "We demonstrate the possibility of achieving the maximum possible singlet fraction using a entangled mixed two-qubit state as a resource. For this, we establish a tight upper bound on singlet fraction and show that the maximal singlet fraction obtained in \\cite{Verstraete} does not attain the obtained upper bound on the singlet fraction. Interestingly, we found that the required upper bound can in fact be achieved using local filtering operations.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2014-03-28T07:52:19.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "qubit mixed entangled states",
      "maximal singlet fraction",
      "tight upper bound",
      "local filtering operations",
      "entangled mixed two-qubit state"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2014arXiv1403.6929A"
    }
  }
}