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arXiv · 1509.00478

Coupling Identical 1D Many-Body Localized Systems

Pranjal Bordia·Henrik P. Lüschen·Sean S. Hodgman·Michael Schreiber·Immanuel Bloch·Ulrich Schneider
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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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Pranjal Bordia, Henrik P. Lüschen, Sean S. Hodgman, Michael Schreiber, Immanuel Bloch, Ulrich Schneider. 2016-04-18. Coupling Identical 1D Many-Body Localized Systems. https://doi.org/10.1103/physrevlett.116.140401

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