Article Dans Une Revue EPL Année : 2022

Superfluidity vs. prethermalisation in a nonlinear Floquet system

Résumé

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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hal-03892288 , version 1 (07-08-2025)

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Sen Mu, Nicolas Macé, Jiangbin Gong, Christian Miniatura, Gabriel Lemarié, et al.. Superfluidity vs. prethermalisation in a nonlinear Floquet system. EPL, 2022, 140 (5), pp.50001. ⟨10.1209/0295-5075/aca4f0⟩. ⟨hal-03892288⟩
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