论文标题
开放量子东模型中的分层经典亚稳定性
Hierarchical classical metastability in an open quantum East model
论文作者
论文摘要
我们详细研究了经典动力学模型的开放量子概括 - 东方模型 - 已知，该模型表现出较慢的玻璃状动力学，该动力学来自具有不同寿命的亚稳态状态的复杂层次结构。使用最近引入的开放量子系统的经典亚稳定性理论，我们表明驱动的开放量子East模型具有低温和较弱驾驶场上经典转移的层次结构。我们发现，对其动力学的有效长期描述不仅是经典的，而且与经典的东方模型具有许多特性，例如遵守有效的详细平衡条件，并且缺乏激发之间的静态相互作用，而且在一组经过修改的亚稳态集合中，这些相位的稳定相位是相干的，并且与有效的温度取决于相干驱动器。
We study in detail an open quantum generalisation of a classical kinetically constrained model -- the East model -- known to exhibit slow glassy dynamics stemming from a complex hierarchy of metastable states with distinct lifetimes. Using the recently introduced theory of classical metastability for open quantum systems, we show that the driven open quantum East model features a hierarchy of classical metastabilities at low temperature and weak driving field. We find that the effective long-time description of its dynamics is not only classical, but shares many properties with the classical East model, such as obeying an effective detailed balance condition, and lacking static interactions between excitations, but with this occurring within a modified set of metastable phases which are coherent, and with an effective temperature that is dependent on the coherent drive.
