{
  "id": "1604.04276",
  "version": "v1",
  "published": "2016-04-14T19:47:49.000Z",
  "updated": "2016-04-14T19:47:49.000Z",
  "title": "Determination of the non-equilibrium steady state emerging from a defect",
  "authors": [
    "Bruno Bertini",
    "Maurizio Fagotti"
  ],
  "comment": "6 pages, 2 figures",
  "categories": [
    "cond-mat.stat-mech",
    "quant-ph"
  ],
  "abstract": "We consider the non-equilibrium time evolution of a translationally invariant state under a Hamiltonian with a localized defect. We discern the situations where a light-cone spreads out from the defect and separates the system into regions with macroscopically different properties. We identify the light-cone and propose a procedure to obtain a (quasi-)stationary state describing the late time dynamics of local observables. As an explicit example, we study the time evolution generated by the Hamiltonian of the transverse-field Ising chain with a local defect that cuts the interaction between two sites (a quench of the boundary conditions alongside a global quench). We solve the dynamics exactly and show that the late time properties can be obtained with the general method proposed.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-04-14T19:47:49.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "non-equilibrium steady state emerging",
      "determination",
      "boundary conditions alongside",
      "late time properties",
      "non-equilibrium time evolution"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2016arXiv160404276B"
    }
  }
}