Domain-wall melting as a probe of many-body localization
Quantum Gases
2016-10-19 v2 Disordered Systems and Neural Networks
Statistical Mechanics
Strongly Correlated Electrons
Abstract
Motivated by a recent optical-lattice experiment by Choi et al.[Science 352, 1547 (2016)], we discuss how domain-wall melting can be used to investigate many-body localization. First, by considering noninteracting fermion models, we demonstrate that experimentally accessible measures are sensitive to localization and can thus be used to detect the delocalization-localization transition, including divergences of characteristic length scales. Second, using extensive time-dependent density matrix renormalization group simulations, we study fermions with repulsive interactions on a chain and a two-leg ladder. The extracted critical disorder strengths agree well with the ones found in existing literature.
Keywords
Cite
@article{arxiv.1605.05574,
title = {Domain-wall melting as a probe of many-body localization},
author = {Johannes Hauschild and Fabian Heidrich-Meisner and Frank Pollmann},
journal= {arXiv preprint arXiv:1605.05574},
year = {2016}
}
Comments
4+2 pages, 4+2 figures