{
  "id": "quant-ph/0404149",
  "version": "v1",
  "published": "2004-04-27T03:21:17.000Z",
  "updated": "2004-04-27T03:21:17.000Z",
  "title": "Quantum metastability in a class of moving potentials",
  "authors": [
    "Chung-Chieh Lee",
    "Choon-Lin Ho"
  ],
  "comment": "10 pages, 1 figures",
  "journal": "PRA65, 022111 (2002)",
  "doi": "10.1103/PhysRevA.65.022111",
  "categories": [
    "quant-ph"
  ],
  "abstract": "In this paper we consider quantum metastability in a class of moving potentials introduced by Berry and Klein. Potential in this class has its height and width scaled in a specific way so that it can be transformed into a stationary one. In deriving the non-decay probability of the system, we argue that the appropriate technique to use is the less known method of scattering states. This method is illustrated through two examples, namely, a moving delta-potential and a moving barrier potential. For expanding potentials, one finds that a small but finite non-decay probability persists at large times. Generalization to scaling potentials of arbitrary shape is briefly indicated.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2004-04-27T03:21:17.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quantum metastability",
      "moving potentials",
      "finite non-decay probability persists",
      "specific way",
      "moving barrier potential"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. A"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}