Statistics of systemwide correlations
in the random-field XXZ chain:
Importance of rare events in the many-body localized phase
arXiv:2410.10325
See also : JC, FA & NL, PRL 133 (11), 116502 (2024)
Jeanne Colbois, Fabien Alet and Nicolas Laflorencie
LPT Toulouse CNRS & National University of Singapore
Rare, large correlations...
In a regime (green) where standard observables already predict many-body localization, the midchain (systemwide) correlations along the field direction (\(z\)) reveal a wide region where the typical and average values behave in qualitatively different ways.
