{
  "id": "2302.13816",
  "version": "v1",
  "published": "2023-02-27T14:25:40.000Z",
  "updated": "2023-02-27T14:25:40.000Z",
  "title": "Suppression of one-dimensional weak localization by band asymmetry",
  "authors": [
    "Kartikeya Arora",
    "Rajeev Singh",
    "Pavan Hosur"
  ],
  "categories": [
    "cond-mat.dis-nn",
    "quant-ph"
  ],
  "abstract": "We investigate disorder-induced localization in metals that break time-reversal and inversion symmetries through their energy dispersion, $\\epsilon_{k}\\neq\\epsilon_{-k}$, but lack Berry phases. In the perturbative regime of disorder, we show that weak localization is suppressed due to a mismatch of the Fermi velocities of left and right movers. To substantiate this analytical result, we perform quench numerics on chains shorter than the Anderson localization length -- the latter computed and verified to be finite using the recursive Green's function method -- and find a sharp rise in the saturation value of the participation ratio due to band asymmetry, indicating a tendency to delocalize.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2023-02-27T14:25:40.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "one-dimensional weak localization",
      "band asymmetry",
      "suppression",
      "lack berry phases",
      "perform quench numerics"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}