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arXiv · 2201.03716

Floquet-induced localization in long-range many-body systems

Rozhin Yousefjani·Sougato Bose·Abolfazl Bayat
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Abstract

The fate of many-body localization in long-range interacting systems is not fully settled. For instance, the phase boundary between ergodic and many-body localized regimes is still under debate. Here, we use Floquet dynamics which can induce many-body localization in a clean long-range interacting system through spatiotemporal disorder, which are realized by regular operation of random local rotations. The phase diagram has been determined for two types of uniform and nonuniform long-range couplings. Our Floquet mechanism shows more localizing power than conventional static disorder methods as it pushes the phase boundary in favor of the localized phase. Moreover, our comprehensive long-time simulations provide strong support for obtained results based on static analysis.

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Rozhin Yousefjani, Sougato Bose, Abolfazl Bayat. 2022-01-11. Floquet-induced localization in long-range many-body systems. https://doi.org/10.1103/physrevresearch.5.013094

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