Absence of dynamical localization in interacting driven systems
David J. Luitz, Yevgeny Bar Lev, Achilleas Lazarides
SciPost Phys. 3, 029 (2017) · published 25 October 2017
- doi: 10.21468/SciPostPhys.3.4.029
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Abstract
Using a numerically exact method we study the stability of dynamical localization to the addition of interactions in a periodically driven isolated quantum system which conserves only the total number of particles. We find that while even infinitesimally small interactions destroy dynamical localization, for weak interactions density transport is significantly suppressed and is asymptotically diffusive, with a diffusion coefficient proportional to the interaction strength. For systems tuned away from the dynamical localization point, even slightly, transport is dramatically enhanced and within the largest accessible systems sizes a diffusive regime is only pronounced for sufficiently small detunings.
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Authors / Affiliations: mappings to Contributors and Organizations
See all Organizations.- 1 Technische Universität München / Technical University of Munich [TUM]
- 2 Columbia University [CU]
- 3 Max-Planck-Institut für Physik komplexer Systeme / Max Planck Institute for the Physics of Complex Systems
- FP7 People: Marie-Curie Actions (FP7 People) (through Organization: European Commission [EC])
- National Science Foundation [NSF]
- Partnership for Advanced Computing in Europe AISBL (PRACE) (through Organization: Partnership for Advanced Computing in Europe [PRACE])
- Simons Foundation