标题： 通过非时间序相关器表征踢顶模型中的混合本征态 显示英文标题

标题： Characterizing the mixed eigenstates in kicked top model through the out-of-time-order correlator

摘要： 关于这些系统的本征态的性质仍然是鲜为人知的，尽管它在理解几个重要的量子现象（如热化、疤痕效应、隧穿和（去）局域化）中起着关键作用。 在这项工作中，我们通过使用受激顶模型，详细研究了混合本征态的动力学特征，方法是通过时序关联函数（OTOC）。 我们展示了本征态的类型如何反映在OTOC的短时间和长时间行为中，并推测OTOC的动力学可以作为混合本征态的一个指标。 我们的发现进一步证实了OTOC用于研究量子复杂系统的重要性，并且为混合本征态的特点提供了更多的见解。 显示英文摘要

摘要： Generic systems are associated with a mixed classical phase space.The question of the properties of the eigenstates for these systems remains less known, although it plays a key role for understanding several important quantum phenomena such as thermalization, scarring, tunneling, and (de-)localization. In this work, by employing the kicked top model, we perform a detailed investigation of the dynamical signatures of the mixed eigenstates via the out-of-time-order correlator (OTOC). We show how the types of the eigenstates get reflected in the short- and long-time behaviors of the OTOC and conjecture that the dynamics of the OTOC can be used as an indicator of the mixed eigenstates. Our findings further confirm the usefulness of the OTOC for studying quantum complex systems and also provide more insights into the characters the mixed eigenstates.