{
  "id": "1905.10749",
  "version": "v1",
  "published": "2019-05-26T07:13:45.000Z",
  "updated": "2019-05-26T07:13:45.000Z",
  "title": "Dynamics of Charge-Resolved Entanglement after a Local Quench",
  "authors": [
    "Noa Feldman",
    "Moshe Goldstein"
  ],
  "categories": [
    "cond-mat.stat-mech",
    "cond-mat.str-el",
    "hep-th",
    "quant-ph"
  ],
  "abstract": "Quantum entanglement and its main quantitative measures, the entanglement entropy and entanglement negativity, play a central role in many body physics. An interesting twist arises when the system considered has symmetries leading to conserved quantities: Recent studies introduced a way to define, represent in field theory, calculate for 1+1D conformal systems, and measure, the contribution of individual charge sectors to the entanglement measures between different parts of a system in its ground state. In this paper, we apply these ideas to the time evolution of the charge-resolved contributions to the entanglement entropy and negativity after a local quantum quench. We employ conformal field theory techniques, the time-dependent density matrix renormalization group algorithm, and exact solution in the noninteracting limit, finding good agreement between all these methods.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-05-26T07:13:45.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "local quench",
      "charge-resolved entanglement",
      "time-dependent density matrix renormalization group",
      "density matrix renormalization group algorithm",
      "employ conformal field theory techniques"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}