{
  "id": "1409.3688",
  "version": "v1",
  "published": "2014-09-12T09:30:51.000Z",
  "updated": "2014-09-12T09:30:51.000Z",
  "title": "A lower bound on the fidelity between two states in terms of their trace-distance and max-relative entropy",
  "authors": [
    "Lin Zhang",
    "Kaifeng Bu"
  ],
  "comment": "6 pages, no figure, any comments are welcome!",
  "categories": [
    "quant-ph",
    "math-ph",
    "math.MP"
  ],
  "abstract": "Fidelity is a fundamental and ubiquitous concept in quantum information theory. Fuchs-van de Graaf's inequalities deal with bounding fidelity from above and below. In this paper, we give a lower bound on the quantum fidelity between two states in terms of their trace-norm distance and their max-relative entropy.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-09-12T09:30:51.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "lower bound",
      "max-relative entropy",
      "trace-distance",
      "quantum information theory",
      "graafs inequalities deal"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2014arXiv1409.3688Z"
    }
  }
}