{
  "id": "quant-ph/0209017",
  "version": "v2",
  "published": "2002-09-02T15:31:26.000Z",
  "updated": "2003-05-28T15:48:26.000Z",
  "title": "Decoherence of entangled kaons and its connection to entanglement measures",
  "authors": [
    "Reinhold A. Bertlmann",
    "Katharina Durstberger",
    "Beatrix C. Hiesmayr"
  ],
  "comment": "comments and references added, 18 pages, 1 figure",
  "journal": "Phys.Rev. A68 (2003) 012111",
  "doi": "10.1103/PhysRevA.68.012111",
  "categories": [
    "quant-ph",
    "hep-ph"
  ],
  "abstract": "We study the time evolution of the entangled kaon system by considering the Liouville - von Neumann equation with an additional term which allows for decoherence. We choose as generators of decoherence the projectors to the 2-particle eigenstates of the Hamiltonian. Then we compare this model with the data of the CPLEAR experiment and find in this way an upper bound on the strength $\\lambda$ of the decoherence. We also relate $\\lambda$ to an effective decoherence parameter $\\zeta$ considered previously in literature. Finally we discuss our model in the light of different measures of entanglement, i.e. the von Neumann entropy $S$, the entanglement of formation $E$ and the concurrence $C$, and we relate the decoherence parameter $\\zeta$ to the loss of entanglement: $1 - E$.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2003-05-28T15:48:26.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "entanglement measures",
      "connection",
      "von neumann equation",
      "von neumann entropy",
      "entangled kaon system"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. A"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 18,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 594157
    }
  }
}