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Anomalous random multipolar driven insulators
DOI:10.1103/PhysRevB.105.245119.png)
摘要
En 中文
It is by now well established that periodically driven quantum many-body systems can realize topological nonequilibrium phases without any equilibrium counterpart. Here we show that, even in the absence of time translation symmetry, nonequilibrium topological phases of matter can exist in aperiodically driven systems for tunably parametrically long prethermal lifetimes. As a prerequisite, we first demonstrate the existence of longlived prethermal Anderson localization in two dimensions under random multipolar driving. We then show that the localization may be topologically nontrivial with a quantized bulk orbital magnetization even though there are no well-defined Floquet operators. We further confirm the existence of this anomalous random multipolar driven insulator by detecting quantized charge pumping at the boundaries, which renders it experimentally observable.
Keyword:
PERIODICALLY DRIVEN
QUANTUM
DYNAMICS
期刊
IF:
3.7
论文数:
15.4W
被引数:
41.0W
机构
引用论文
Topological edge modes without symmetry in quasiperiodically driven spin chains拟周期驱动的自旋链中没有对称性的拓扑边缘模式
PHYSICAL REVIEW B
IF3.7

