{
  "id": "2010.03968",
  "version": "v1",
  "published": "2020-10-08T13:37:42.000Z",
  "updated": "2020-10-08T13:37:42.000Z",
  "title": "Quantum Correlation Dynamics in Controlled Two-Coupled-Qubit Systems",
  "authors": [
    "Iulia Ghiu",
    "Roberto Grimaudo",
    "Tatiana Mihaescu",
    "Aurelian Isar",
    "Antonino Messina"
  ],
  "journal": "Entropy 22, 785 (2020)",
  "doi": "10.3390/e22070785",
  "categories": [
    "quant-ph"
  ],
  "abstract": "We study and compare the time evolutions of concurrence and quantum discord in a driven system of two interacting qubits prepared in a generic Werner state. The~corresponding quantum dynamics is exactly treated and manifests the appearance and disappearance of entanglement. Our analytical treatment transparently unveils the physical reasons for the occurrence of such a phenomenon, relating it to the dynamical invariance of the $X$ structure of the initial state. The~quantum correlations which asymptotically emerge in the system are investigated in detail in terms of the time evolution of the fidelity of the initial Werner state.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2020-10-08T13:37:42.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quantum correlation dynamics",
      "controlled two-coupled-qubit systems",
      "time evolution",
      "initial werner state",
      "generic werner state"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}