{
  "id": "2007.06747",
  "version": "v1",
  "published": "2020-07-14T00:28:30.000Z",
  "updated": "2020-07-14T00:28:30.000Z",
  "title": "Nature of Non-Adiabatic Electron-Ion Forces in Liquid Metals",
  "authors": [
    "Jacopo Simoni",
    "Jerome Daligault"
  ],
  "categories": [
    "cond-mat.dis-nn",
    "cond-mat.soft"
  ],
  "abstract": "An accurate description of electron-ion interactions in materials is crucial for our understanding of their equilibrium and non-equilibrium properties. Here, we assess the properties of frictional forces experienced by ions in non-crystalline metallic systems, including liquid metals and warm dense plasmas, that arise from electronic excitations driven by the nuclear motion due to the presence of a continuum of low-lying electronic states. To this end, we perform detailed ab-initio calculations of the full friction tensor that characterizes the set of friction forces. The nonadiabatic electron-ion interactions introduce hydrodynamic couplings between the ionic degrees of freedom, which are sizeable between nearest neigbors. The friction tensor is generally inhomogeneous, anisotropic and non-diagonal, especially at lower densities.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2020-07-14T00:28:30.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "non-adiabatic electron-ion forces",
      "liquid metals",
      "electronic excitations driven",
      "warm dense plasmas",
      "perform detailed ab-initio calculations"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}