Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 113, Issue 31, Pages E4455-E4459Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1606908113
Keywords
many-body localization; disordered bosons; ultracold atomic gases
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Funding
- IFRAF
- Dutch Foundation FOM
- European Research Council under European Community's Seventh Framework Programme (FR7) [341197]
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We consider the many-body localization-delocalization transition for strongly interacting one-dimensional disordered bosons and construct the full picture of finite temperature behavior of this system. This picture shows two insulator-fluid transitions at any finite temperature when varying the interaction strength. At weak interactions, an increase in the interaction strength leads to insulator. fluid transition, and, for large interactions, there is a reentrance to the insulator regime. It is feasible to experimentally verify these predictions by tuning the interaction strength with the use of Feshbach or confinement-induced resonances, for example, in Li-7 or K-39.
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