论文标题
非线性浮雕系统中的超流量与预浮力
Superfluidity vs prethermalisation in a nonlinear Floquet system
论文作者
论文摘要
我们表明，可以使用超流量来防止在非线性浮部系统中进行热呈热化。一般而言，定期驾驶将相互作用的系统沸腾到无限的无限温度状态。快速驾驶是一种已知的策略，可以在较大但始终有限的沸腾时间中推迟浮力加热。相比之下，在晶格上使用非线性定期驱动的系统，我们表明存在一类连续的初始状态，这些状态根本不会热化。这种没有热化的缺失与稳定的超级流动运动的存在和持久性有关。
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.
