论文标题

在不可融合系统中量子淬灭之后的局部动力学:锯齿梯子上的一个示例

Localized dynamics following a quantum quench in a non-integrable system: An example on the sawtooth ladder

论文作者

Khare, Rishabh, Choudhury, Sayan

论文摘要

由于最近发现的几何沮丧系统中的奇异性破裂的动机,我们研究了在锯齿梯子上相互作用的硬核玻色子的淬火动态。我们确定了一组初始状态,该系统表现出该系统的特征性特征性特征,例如初始状态记忆保留和纠缠熵的缓慢生长,以范围广泛。值得注意的是,即使多体频谱正在热化,这种定位仍然存在。我们认为局部动力学源自相互作用引起的量子干扰。我们的结果表明,锯齿梯可以是实现非平衡量子状态的肥沃平台。

Motivated by the recent discovery of ergodicity breaking in geometrically frustrated systems, we study the quench dynamics of interacting hardcore bosons on a sawtooth ladder. We identify a set of initial states for which this system exhibits characteristic signatures of localization like initial state memory retention and slow growth of entanglement entropy for a wide parameter regime. Remarkably, this localization persists even when the many-body spectrum is thermalizing. We argue that the localized dynamics originates from an interaction induced quantum interference. Our results show that the sawtooth ladder can be a fertile platform for realizing non-equilibrium quantum states of matter.

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