论文标题
在具有运动障碍的晶格系统中物质波的定位
Localization of matter waves in lattice systems with moving disorder
论文作者
论文摘要
我们研究具有均匀移动无序潜力的一维晶格系统中的定位现象。在低移动速度下，我们发现了一个滑动的局部相位，其中最初局部的物质波绝热遵循移动电势而无需扩散，从而导致多体动力学中的初始状态内存。这种有趣的本地化阶段在两个方面与标准安德森本地化区分开来：与相互作用相互作用并不强大，但在存在缓慢变化的扰动的情况下持续存在。这种滑动的局部相可以理解是由于在移动的准周期电位下的波袋路径之间的干扰，其各个时期与晶格常数不一致。还讨论了实验实现和检测。
We study the localization phenomena in a one-dimensional lattice system with a uniformly moving disordered potential. At a low moving velocity, we find a sliding localized phase in which the initially localized matter wave adiabatically follows the moving potential without diffusion, thus resulting in an initial state memory in the many-body dynamics. Such an intriguing localized phase distinguishes itself from the standard Anderson localization in two aspects: it is not robust against interaction, but persists in the presence of slowly varying perturbations. Such a sliding localized phase can be understood as a consequence of interference between the wavepacket paths under moving quasi-periodic potentials with various periods that are incommensurate with the lattice constant. The experimental realization and detection were also discussed..
