{
  "id": "2202.04973",
  "version": "v1",
  "published": "2022-02-10T12:06:56.000Z",
  "updated": "2022-02-10T12:06:56.000Z",
  "title": "Floquet-Landau-Zener interferometry: Usefulness of the Floquet theory in pulse-laser-driven systems",
  "authors": [
    "Tatsuhiko N. Ikeda",
    "Satoshi Tanaka",
    "Yosuke Kayanuma"
  ],
  "comment": "9+6 pages, 12 figures",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.quant-gas",
    "cond-mat.stat-mech",
    "physics.optics",
    "quant-ph"
  ],
  "abstract": "We develop the Landau-Zener transfer matrix theory for the instantaneous Floquet states (IFSs) for quantum systems driven by strong pulse lasers. Applying this theory to the pulse excitation probability in two-level quantum systems, we show unexpectedly good quantitative agreements for few-cycle pulses. This approach enables us to qualitatively understand the probability's peculiar behaviors as quantum path interference between IFSs. We also study the pulse-width dependence, finding that this Floquet-state interpretation remains useful for shorter pulses down to 2-cycle ones in the present model. These results imply that the Floquet theory is meaningful in experimental few-cycle lasers if applied appropriately in the sense of IFSs.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-02-10T12:06:56.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "floquet theory",
      "pulse-laser-driven systems",
      "floquet-landau-zener interferometry",
      "usefulness",
      "landau-zener transfer matrix theory"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}