Coupling Identical one-dimensional Many-Body Localized Systems

Pranjal Bordia; Henrik P. Lüschen; Sean S. Hodgman; Michael Schreiber; Immanuel Bloch; Ulrich Schneider

doi:10.1103/PhysRevLett.116.140401

Coupling Identical one-dimensional Many-Body Localized Systems

Pranjal Bordia, Henrik P. Lüschen, Sean S. Hodgman, Michael Schreiber, Immanuel Bloch, Ulrich Schneider

Research output: Contribution to journal › Article › peer-review

307 Citations (Scopus)

Abstract

We experimentally study the effects of coupling one-dimensional many-body localized systems with identical disorder. Using a gas of ultracold fermions in an optical lattice, we artificially prepare an initial charge density wave in an array of 1D tubes with quasirandom on-site disorder and monitor the subsequent dynamics over several thousand tunneling times. We find a strikingly different behavior between many-body localization and Anderson localization. While the noninteracting Anderson case remains localized, in the interacting case any coupling between the tubes leads to a delocalization of the entire system.

Original language	English
Article number	140401
Journal	Physical Review Letters
Volume	116
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.116.140401
Publication status	Published - 4 Apr 2016

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10.1103/PhysRevLett.116.140401

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title = "Coupling Identical one-dimensional Many-Body Localized Systems",

abstract = "We experimentally study the effects of coupling one-dimensional many-body localized systems with identical disorder. Using a gas of ultracold fermions in an optical lattice, we artificially prepare an initial charge density wave in an array of 1D tubes with quasirandom on-site disorder and monitor the subsequent dynamics over several thousand tunneling times. We find a strikingly different behavior between many-body localization and Anderson localization. While the noninteracting Anderson case remains localized, in the interacting case any coupling between the tubes leads to a delocalization of the entire system.",

author = "Pranjal Bordia and L{\"u}schen, {Henrik P.} and Hodgman, {Sean S.} and Michael Schreiber and Immanuel Bloch and Ulrich Schneider",

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AU - Lüschen, Henrik P.

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AU - Schreiber, Michael

AU - Bloch, Immanuel

AU - Schneider, Ulrich

PY - 2016/4/4

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AB - We experimentally study the effects of coupling one-dimensional many-body localized systems with identical disorder. Using a gas of ultracold fermions in an optical lattice, we artificially prepare an initial charge density wave in an array of 1D tubes with quasirandom on-site disorder and monitor the subsequent dynamics over several thousand tunneling times. We find a strikingly different behavior between many-body localization and Anderson localization. While the noninteracting 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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Coupling Identical one-dimensional Many-Body Localized Systems

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