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arXiv · 2207.06951

Superfluidity vs prethermalisation in a nonlinear Floquet system

Sen Mu·Nicolas Macé·Jiangbin Gong·Christian Miniatura·Gabriel Lemarié·Mathias Albert
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Abstract

We show that superfluidity can be used to prevent thermalisation in a nonlinear Floquet system. Generically, periodic driving boils an interacting system to a featureless infinite temperature state. Fast driving is a known strategy to postpone Floquet heating with a large but always finite boiling time. In contrast, using a nonlinear periodically-driven system on a lattice, we show the existence of a continuous class of initial states which do not thermalise at all. This absence of thermalisation is associated to the existence and persistence of a stable superflow motion.

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Sen Mu, Nicolas Macé, Jiangbin Gong, Christian Miniatura, Gabriel Lemarié, Mathias Albert. 2022-07-14. Superfluidity vs prethermalisation in a nonlinear Floquet system. https://doi.org/10.1209/0295-5075/aca4f0

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