---
res:
  bibo_abstract:
  - We analyze a disordered central spin model, where a central spin interacts equally
    with each spin in a periodic one-dimensional (1D) random-field Heisenberg chain.
    If the Heisenberg chain is initially in the many-body localized (MBL) phase, we
    find that the coupling to the central spin suffices to delocalize the chain for
    a substantial range of coupling strengths. We calculate the phase diagram of the
    model and identify the phase boundary between the MBL and ergodic phase. Within
    the localized phase, the central spin significantly enhances the rate of the logarithmic
    entanglement growth and its saturation value. We attribute the increase in entanglement
    entropy to a nonextensive enhancement of magnetization fluctuations induced by
    the central spin. Finally, we demonstrate that correlation functions of the central
    spin can be utilized to distinguish between MBL and ergodic phases of the 1D chain.
    Hence, we propose the use of a central spin as a possible experimental probe to
    identify the MBL phase.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Daniel
      foaf_name: Hetterich, Daniel
      foaf_surname: Hetterich
  - foaf_Person:
      foaf_givenName: Norman
      foaf_name: Yao, Norman
      foaf_surname: Yao
  - foaf_Person:
      foaf_givenName: Maksym
      foaf_name: Serbyn, Maksym
      foaf_surname: Serbyn
      foaf_workInfoHomepage: http://www.librecat.org/personId=47809E7E-F248-11E8-B48F-1D18A9856A87
    orcid: 0000-0002-2399-5827
  - foaf_Person:
      foaf_givenName: Frank
      foaf_name: Pollmann, Frank
      foaf_surname: Pollmann
  - foaf_Person:
      foaf_givenName: Björn
      foaf_name: Trauzettel, Björn
      foaf_surname: Trauzettel
  bibo_doi: 10.1103/PhysRevB.98.161122
  bibo_issue: '16'
  bibo_volume: 98
  dct_date: 2018^xs_gYear
  dct_identifier:
  - UT:000448596500002
  dct_language: eng
  dct_publisher: American Physical Society@
  dct_title: Detection and characterization of many-body localization in central spin
    models@
...