{
  "id": "quant-ph/0703103",
  "version": "v1",
  "published": "2007-03-13T13:37:54.000Z",
  "updated": "2007-03-13T13:37:54.000Z",
  "title": "\"Quantumness\" versus \"Classicality\" of Quantum States",
  "authors": [
    "Berry Groisman",
    "Dan Kenigsberg",
    "Tal Mor"
  ],
  "comment": "4 and a bit pages, RevTeX",
  "categories": [
    "quant-ph"
  ],
  "abstract": "Entanglement is one of the pillars of quantum mechanics and quantum information processing, and as a result the quantumness of nonentangled states has typically been overlooked and unrecognized. We give a robust definition for the classicality versus quantumness of a single multipartite quantum state, a set of states, and a protocol using quantum states. We show a variety of nonentangled (separable) states that exhibit interesting quantum properties, and we explore the ``zoo'' of separable states; several interesting subclasses are defined based on their diagonalizing bases, and their non-classical behavior is investigated.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2007-03-13T13:37:54.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quantumness",
      "classicality",
      "single multipartite quantum state",
      "robust definition",
      "quantum mechanics"
    ],
    "note": {
      "typesetting": "RevTeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2007quant.ph..3103G"
    }
  }
}