论文标题
稳定的相互作用引起的类似安德森的定位嵌入了直立波中
Stable interaction-induced Anderson-like localization embedded in standing waves
论文作者
论文摘要
我们揭示了无序超晶格中玻色子的相互作用引起的\ emph {稳定的自定位}。在这些非热量的多粒子状态中，其中一个颗粒形成多个驻波的叠加，因此它为定位其他颗粒提供了quasirandom的潜力。我们为自定位的状态提供有效的哈密顿人，并找到其能量水平的间距，遵守安德森式定位的泊松统计数据。令人惊讶的是，我们发现相关的自定位可以仅通过研究良好的不整合的玻色纸模型中的相互作用来诱导，该模型长期以来一直被忽略了。我们提出了一个动力学方案来检测自定位，其中长期量子步行单个粒子形成多个站立波的叠加，以捕获随后的加载颗粒。我们的工作提供了一种实验可行的方法，可以实现无带障碍系统中的稳定的安德森式定位。
We uncover the interaction-induced \emph{stable self-localization} of bosons in disorder-free superlattices. In these nonthermalized multi-particle states, one of the particles forms a superposition of multiple standing waves, so that it provides a quasirandom potential to localize the other particles. We derive effective Hamiltonians for self-localized states and find their energy level spacings obeying the Poisson statistics for Anderson-like localization. Surprisingly, we find that the correlated self-localization can be solely induced by interaction in the well-studied nonintegrable Bose-Hubbard models, which has been overlooked for a long time. We propose a dynamical scheme to detect self-localization, where long-time quantum walks of a single particle form a superposition of multiple standing waves for trapping the subsequently loaded particles. Our work provides an experimentally feasible way to realize stable Anderson-like localization in translation-invariant disorder-free systems.
