{
  "id": "0710.5653",
  "version": "v1",
  "published": "2007-10-30T14:05:27.000Z",
  "updated": "2007-10-30T14:05:27.000Z",
  "title": "Time-dependent quasi-Hermitian Hamiltonians and the unitarity of quantum evolution",
  "authors": [
    "Miloslav Znojil"
  ],
  "comment": "10 pp",
  "categories": [
    "quant-ph"
  ],
  "abstract": "We show that the consequences of an introduction of a manifest time-dependence in a pseudo-Hermitian Hamiltonian H=H(t) are by far less drastic than suggested by A. Mostafazadeh in Phys. Lett. B 650 (2007) 208 (arXiv:0706.1872v2 [quant-ph]). In particular, the unitarity of the evolution does not necessitate the time-independence of the metric $\\eta_+=\\eta_+(t)$.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2007-10-30T14:05:27.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "time-dependent quasi-hermitian hamiltonians",
      "quantum evolution",
      "manifest time-dependence",
      "pseudo-hermitian hamiltonian",
      "consequences"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2007arXiv0710.5653Z"
    }
  }
}