Coupling Identical one-dimensional Many-Body Localized Systems
Lüschen, Henrik P
Hodgman, Sean S
Physical Review Letters
American Physical Society
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Bordia, P., Lüschen, H. P., Hodgman, S. S., Schreiber, M., Bloch, I., & Schneider, U. (2016). Coupling Identical one-dimensional Many-Body Localized Systems. Physical Review Letters, 116 (140401)https://doi.org/10.1103/PhysRevLett.116.140401
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.
We acknowledge financial support by the European Commision (UQUAM, AQuS) and the Nanosystems Initiative Munich (NIM).
External DOI: https://doi.org/10.1103/PhysRevLett.116.140401
This record's URL: https://www.repository.cam.ac.uk/handle/1810/255083
Attribution-NonCommercial 2.0 UK: England & Wales
Licence URL: http://creativecommons.org/licenses/by-nc/2.0/uk/
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