论文标题
液体时间晶体
Liquid Time Crystals
论文作者
论文摘要
我们已经构建并表征了一种研究重力弹跳流体的仪器，并受到周期性驱动力的影响。我们的系统结合了一台液滴打印机，该打印机可以在流体表面上进行按需计算机控制的水滴沉积。我们通过创建和观察长寿命和相互作用的时间晶体来证明该工具的运作，我们目睹了超过十万个波动期的演变。我们的观察结果为在驱动的非平衡系统中区分量子和经典时间晶体行为的实验提供了比较点。
We have constructed and characterised an instrument to study gravitationally bouncing droplets of fluid, subjected to periodic driving force. Our system incorporates a droplet printer that enables an on-demand computer controlled deposition of droplets on the fluid surface. We demonstrate the operation of this instrument by creating and observing long-lived and interacting time crystals whose evolution we have witnessed for more than one hundred thousand oscillation periods. Our observations provide points of comparison for experiments that differentiate between quantum and classical time crystal behaviours in driven non-equilibrium systems.
