{
  "id": "2103.05480",
  "version": "v1",
  "published": "2021-03-09T15:11:42.000Z",
  "updated": "2021-03-09T15:11:42.000Z",
  "title": "From the topological spin-Hall effect to the non-Hermitian skin effect in an elliptical micropillar chain",
  "authors": [
    "S. Mandal",
    "R. Banerjee",
    "T. C. H. Liew"
  ],
  "comment": "4 pages main + 3 pages supplementary (excluding references)",
  "categories": [
    "cond-mat.mes-hall",
    "physics.optics"
  ],
  "abstract": "The topological spin-Hall effect causes different spins to propagate in opposite directions based on Hermitian physics. The non-Hermitian skin effect causes the localization of all modes of a system at its edges. Although these effects have separately attracted tremendous interest, their completely different origins have made them hard to observe in a single system. Here we propose a system based on exciton-polariton elliptical micropillars hosting both the effects. The polarization splitting and different orientation of the elliptical micropillars naturally give rise to the topological spin-Hall effect in a one dimensional lattice. By making the effective decay rates of the different spin ($\\sigma_\\pm$) modes unequal, the system makes a phase transition from the Hermitian regime to non-Hermitian regime showing the non-Hermitian skin effect.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2021-03-09T15:11:42.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "non-hermitian skin effect",
      "topological spin-hall effect",
      "elliptical micropillar chain",
      "hermitian physics",
      "non-hermitian regime"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}