{
  "id": "quant-ph/0211164",
  "version": "v1",
  "published": "2002-11-25T16:55:00.000Z",
  "updated": "2002-11-25T16:55:00.000Z",
  "title": "Comment on ``Dynamics of open quantum systems initially entangled with environment: Beyond the Kraus representation'' [PRA 64, 062106 (2001)]",
  "authors": [
    "D. Salgado",
    "J. L. Sanchez-Gomez"
  ],
  "comment": "2 pages, no figures",
  "categories": [
    "quant-ph"
  ],
  "abstract": "We correct a mistake in a result reported in [PRA 64, 062106 (2001)], where it is rightfully argued that initial correlations between a system and its environment may render the system reduced dynamics not completely positive. We prove how not only these initial correlations but also the specific joint dynamics does play a significant role in the question of the complete positivy of the reduced dynamics.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2002-11-25T16:55:00.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "open quantum systems",
      "kraus representation",
      "environment",
      "initial correlations",
      "reduced dynamics"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 2,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2002quant.ph.11164S"
    }
  }
}