Coupling Identical 1D Many-Body Localized Systems

2015/09/30 by Pranjal Bordia, Henrik P. Lüschen, Sean S. Hodgman +3 · 1 citation
Physics and Astronomy · #cond-mat.dis-nn #cond-mat.quant-gas #cond-mat.stat-mech #cond-mat.str-el #quant-ph

paper · pdf · doi:10.1103/physrevlett.116.140401

published as Phys. Rev. Lett. 116, 140401 (2016) · 4+3 pages, 5+4 figures final version using stretched exponential fits to improve fit quality

arxiv created 2016/04/18 · arxiv updated 2016/04/19

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.

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• Many body localization in Disordered One-Dimensional Fermi-Hubbard Model
• Many-body localization properties of one-dimensional anisotropic spin-1/2 chains

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