{
  "id": "1704.08939",
  "version": "v1",
  "published": "2017-04-28T14:02:27.000Z",
  "updated": "2017-04-28T14:02:27.000Z",
  "title": "Optical absorption in interacting and nonlinear Weyl semimetals",
  "authors": [
    "Simon Bertrand",
    "Ion Garate",
    "René Côté"
  ],
  "comment": "17 pages, 12 figures (submitted)",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.mtrl-sci",
    "cond-mat.str-el"
  ],
  "abstract": "It has been recently predicted that the interplay between Coulomb interactions and Berry curvature can produce interesting optical phenomena in topologically nontrivial two-dimensional insulators. Here, we present a theory of the optical absorption for three-dimensional, hole-doped Weyl semimetals. We find that the Berry curvature, Coulomb interactions and the nonlinearity in the single-particle energy spectrum can together enable a light-induced valley polarization. We support and supplement our numerical results with an analytical toy model calculation, which unveils topologically nontrivial Mahan excitons with nonzero vorticity.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2017-04-28T14:02:27.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "nonlinear weyl semimetals",
      "optical absorption",
      "coulomb interactions",
      "unveils topologically nontrivial mahan excitons",
      "berry curvature"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 17,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}