Disorder-induced Localization in a Strongly Correlated Atomic Hubbard Gas
Quantum Gases
2015-03-05 v3 Disordered Systems and Neural Networks
Abstract
We observe the emergence of a disorder-induced insulating state in a strongly interacting atomic Fermi gas trapped in an optical lattice. This closed quantum system free of a thermal reservoir realizes the disordered Fermi-Hubbard model, which is a minimal model for strongly correlated electronic solids. In measurements of disorder-induced localization obtained via mass transport, we detect interaction-driven delocalization and localization that persists as the temperature of the gas is raised. These behaviors are consistent with many-body localization, which is a novel paradigm for understanding localization in interacting quantum systems at non-zero temperature.
Keywords
Cite
@article{arxiv.1305.6072,
title = {Disorder-induced Localization in a Strongly Correlated Atomic Hubbard Gas},
author = {S. S. Kondov and W. R. McGehee and W. Xu and B. DeMarco},
journal= {arXiv preprint arXiv:1305.6072},
year = {2015}
}