{
  "id": "2502.08546",
  "version": "v1",
  "published": "2025-02-12T16:29:16.000Z",
  "updated": "2025-02-12T16:29:16.000Z",
  "title": "Monolayer transition metal dichalcogenides under finite-pulse polarized radiation",
  "authors": [
    "Alejandro S. Gómez",
    "Yuriko Baba",
    "Francisco Domínguez-Adame",
    "Rafael A. Molina"
  ],
  "comment": "17 pages, 12 figures",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.other"
  ],
  "abstract": "Recent advances in time-resolved angle-resolved photoemission spectroscopy have enabled access to ultrafast electron states and their spin dynamics in solids. Atomically thin transition metal dichalcogenides are paradigmatic two-dimensional materials where electron momentum and spin degrees of freedom are coupled, being suitable candidates for time-resolved spectroscopy studies. In this work, we present a thorough study of the electron dynamics when these materials are subject to an intense finite-pulse driving radiation. We extend the scope of the conventional Floquet engineering and rely of the so-called $t-t^{\\prime}$ formalism to deal with driving fields described with two distinct time scales, namely the envelope amplitude timescale and the time period of the external field. The interplay between the finite-pulse timescales and the intrinsic properties of the electrons gives rise to transient valley polarization and dynamical modifications of band structures, revealed by the time-dependent circular dichroism of the sample.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2025-02-12T16:29:16.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "monolayer transition metal dichalcogenides",
      "finite-pulse polarized radiation",
      "atomically thin transition metal dichalcogenides",
      "ultrafast electron states",
      "intense finite-pulse driving radiation"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 17,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}