Experimental investigation of non-equilibrium quantum systems by matter-wave interferometry

这个项目的主要目的是回答关于多体量子系统的紧急非平衡(NEQ)现象，特别是多体定域(MBL)相的关键问题。这将通过设计和建造新一代冷原子设备来实现，该设备以点状无序势产生2D量子气体，几乎可以任意控制施加的无序。最近的理论和实验工作发现了在有限温度下多体系统相互作用的一种新的局域态，称为MBL。之所以对MBL产生研究兴趣，是因为它可以防止即使在相互作用的多体系统中的热化。利用我们近年来发展起来的基于物质波干涉测量的实验方法，我们将观察到二维MBL系统中的新的动力学现象。

The main purpose of this project is to answer key questions about emergent non-equilibrium (NEQ) phenomena ofmany-body quantum systems, in particular the many-body localised (MBL) phase. This will be achieved by designingand constructing a new generation of cold-atom apparatus that produces 2D quantum gases in point-like disorderedpotentials with near-arbitrary control of the imposed disorder. Recent theoretical and experimentalwork has identified a novel localised state of interacting many-body systems at finite temperatures called the MBL.The research interest in MBL arises because it can prevent thermalisation even in interacting many-body systems. With theexperimental method based on matter-wave interferometry that we have developed in recent years, we will observenovel dynamical phenomena in 2D MBL systems.