{
  "id": "2111.13019",
  "version": "v2",
  "published": "2021-11-25T11:00:10.000Z",
  "updated": "2022-02-11T02:15:50.000Z",
  "title": "Typicality of nonequilibrium (quasi-)steady currents",
  "authors": [
    "Xiansong Xu",
    "Chu Guo",
    "Dario Poletti"
  ],
  "comment": "5 pages, 3 figures, with supplementary materials",
  "categories": [
    "cond-mat.stat-mech",
    "quant-ph"
  ],
  "abstract": "The understanding of the emergence of equilibrium statistical mechanics has progressed significantly thanks to developments from typicality, canonical and dynamical, and from the eigenstate thermalization hypothesis. Here we focus on a nonequilibrium scenario in which two nonintegrable systems prepared in different states are locally and non-extensively coupled to each other. Using both perturbative analysis and numerical exact simulations of up to 28 spin systems, we demonstrate the typical emergence of nonequilibrium (quasi-)steady current for weak coupling between the subsystems. We also identify that these currents originate from a prethermalization mechanism, which is the weak and local breaking of the conservation of the energy for each subsystem.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2022-02-11T02:15:50.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "steady current",
      "typicality",
      "eigenstate thermalization hypothesis",
      "currents originate",
      "spin systems"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}