Many-body mobility edge due to symmetry-constrained dynamics and strong interactions
Disordered Systems and Neural Networks
2015-09-02 v1 Statistical Mechanics
Strongly Correlated Electrons
Abstract
We provide numerical evidence combined with an analytical understanding of the many-body mobility edge for the strongly anisotropic spin-1/2 XXZ model in a random magnetic field. The system dynamics can be understood in terms of symmetry-constrained excitations about parent states with ferromagnetic and anti-ferromagnetic short range order. These two regimes yield vastly different dynamics producing an observable, tunable many-body mobility edge. We compute a set of diagnostic quantities that verify the presence of the mobility edge and discuss how weakly correlated disorder can tune the mobility edge further.
Keywords
Cite
@article{arxiv.1501.03824,
title = {Many-body mobility edge due to symmetry-constrained dynamics and strong interactions},
author = {Ian Mondragon-Shem and Arijeet Pal and Taylor L. Hughes and Chris R. Laumann},
journal= {arXiv preprint arXiv:1501.03824},
year = {2015}
}
Comments
10 pages, 5 figures