Extended nonergodic states in disordered many-body quantum systems
Disordered Systems and Neural Networks
2017-02-09 v2
Abstract
This work supports the existence of extended nonergodic states in the intermediate region between the chaotic (thermal) and the many-body localized phases. These states are identified through an extensive analysis of static and dynamical properties of a finite one-dimensional system with onsite random disorder. The long-time dynamics is particularly sensitive to changes in the spectrum and in the structures of the eigenstates. The study of the evolution of the survival probability, Shannon information entropy, and von Neumann entanglement entropy enables the distinction between the chaotic and the intermediate region.
Cite
@article{arxiv.1610.02035,
title = {Extended nonergodic states in disordered many-body quantum systems},
author = {E. J. Torres-Herrera and Lea F. Santos},
journal= {arXiv preprint arXiv:1610.02035},
year = {2017}
}
Comments
10 pages, 7 figures, Contribution to the Special Issue "Many-Body Localization" in Annalen der Physik