{
  "id": "1601.00719",
  "version": "v1",
  "published": "2016-01-05T02:52:07.000Z",
  "updated": "2016-01-05T02:52:07.000Z",
  "title": "On characterizations of bistochastic Kadison-Schwarz operators on $M_2(\\mathbb{C})$",
  "authors": [
    "Farrukh Mukhamedov",
    "Hasan Akin"
  ],
  "comment": "16 pages, 2 figures. arXiv admin note: text overlap with arXiv:1005.5532",
  "categories": [
    "math.FA",
    "math-ph",
    "math.MP",
    "quant-ph"
  ],
  "abstract": "In this paper we describe bistochastic Kadison-Schawrz operators acting on $M_2(\\mathbb{C})$. Such a description allows us to find positive, but not Kadison-Schwarz operators. Moreover, by means of that characterization we construct Kadison-Schawrz operators, which are not completely positive.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-01-05T02:52:07.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "47L07",
      "46L30",
      "47C15",
      "15A48",
      "81P68",
      "60J99"
    ],
    "keywords": [
      "bistochastic kadison-schwarz operators",
      "characterization",
      "construct kadison-schawrz operators",
      "bistochastic kadison-schawrz operators acting"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 16,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2016arXiv160100719M"
    }
  }
}