Coupling Identical 1D Many-Body Localized Systems
Quantum Gases
2016-04-19 v2 Disordered Systems and Neural Networks
Statistical Mechanics
Strongly Correlated Electrons
Quantum Physics
Abstract
We experimentally study the effects of coupling one-dimensional Many-Body Localized (MBL) systems with identical disorder. Using a gas of ultracold fermions in an optical lattice, we artifically prepare an initial charge density wave in an array of 1D tubes with quasi-random onsite disorder and monitor the subsequent dynamics over several thousand tunneling times. We find a strikingly different behavior between MBL and Anderson Localization. While the non-interacting Anderson case remains localized, in the interacting case any coupling between the tubes leads to a delocalization of the entire system.
Cite
@article{arxiv.1509.00478,
title = {Coupling Identical 1D Many-Body Localized Systems},
author = {Pranjal Bordia and Henrik P. Lüschen and Sean S. Hodgman and Michael Schreiber and Immanuel Bloch and Ulrich Schneider},
journal= {arXiv preprint arXiv:1509.00478},
year = {2016}
}
Comments
4+3 pages, 5+4 figures final version using stretched exponential fits to improve fit quality