{
  "id": "quant-ph/0701025",
  "version": "v2",
  "published": "2007-01-06T12:08:46.000Z",
  "updated": "2007-04-07T12:40:57.000Z",
  "title": "Probabilistic reversing operation with fidelity and purity gain for macroscopic quantum superposition",
  "authors": [
    "Hiroaki Terashima",
    "Masahito Ueda"
  ],
  "comment": "21 pages, 2 figures",
  "journal": "Phys.Rev. A75 (2007) 052323",
  "doi": "10.1103/PhysRevA.75.052323",
  "categories": [
    "quant-ph"
  ],
  "abstract": "It is shown that a large class of weak disturbances on macroscopic quantum superpositions can be canceled by a probabilistic reversing operation on the system. We illustrate this for spin systems undergoing an Ising-type interaction with the environment and demonstrate that both the fidelity to the original state and the purity of the amended state can simultaneously be increased by the reversing operation. A possible experimental scheme to implement our scheme is discussed.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2007-04-07T12:40:57.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "macroscopic quantum superposition",
      "probabilistic reversing operation",
      "purity gain",
      "large class",
      "experimental scheme"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. A"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 21,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}