Slow propagation of information on the random XXZ quantum spin chain

Alexander Elgart, Abel Klein

Published 2023-11-23Version 1

The random XXZ quantum spin chain manifests localization (in the form of quasi-locality) in any fixed energy interval, as previously proved by the authors. In this article it is shown that this property implies slow propagation of information, one of the putative signatures of many-body localization, in the same energy interval.