论文标题
异常的浮子安德森绝缘子，带有式静态噪声
Anomalous Floquet-Anderson Insulator with Quasiperiodic Temporal Noise
论文作者
论文摘要
时间周期性（floquet）驱动器可能会导致物质的新型对称性断裂和拓扑阶段。最近，我们表明，典型的浮雕拓扑阶段（称为异常的Floquet-Anderson绝缘子）在其Floquet Drive的时机上对噪声稳定。在这里，我们以单个不相当的频率扰动异常的Floquet-Anderson绝缘子，从而导致了准二元2音驱动器。我们的数字表明，强大的拓扑阶段在弱噪声下生存，拓扑抽动比白噪声更稳定。在拓扑阶段，我们表明颗粒在细节上移动，这直接负责稳定拓扑运输。令人惊讶的是，我们发现，当准二噪声足够强以杀死拓扑结构时，该系统似乎表现出扩散的动力学，这表明准二氧化噪声的相关结构变得无关紧要。
Time-periodic (Floquet) drive can give rise to novel symmetry breaking and topological phases of matter. Recently, we showed that a quintessential Floquet topological phase known as the anomalous Floquet-Anderson insulator is stable to noise on the timing of its Floquet drive. Here, we perturb the anomalous Floquet-Anderson insulator at a single incommensurate frequency, resulting in a quasiperiodic 2-tone drive. Our numerics indicate that a robust topological phase survives at weak noise with topological pumping that is more stable than the case of white noise. Within the topological phase, we show that particles move subdiffusively, which is directly responsible for stabilizing topological transport. Surprisingly, we discover that when quasiperiodic noise is sufficiently strong to kill topology, the system appears to exhibit diffusive dynamics, suggesting that the correlated structure of the quasiperiodic noise becomes irrelevant.
