论文标题
长距离腔诱导的准膜相互作用的巨像破裂
Ergodicity breaking with long range cavity induced quasiperiodic interactions
论文作者
论文摘要
分析了多体定位（MBL）行为{在具有准碘的无限范围相互作用的扩展bose-hubbard模型中。没有其他障碍。检查特征状态的水平统计数据和纠缠熵，我们表明，系统的特征态的很大一部分是在存在强相互作用的情况下定位的。尽管如此，我们的结果表明，该系统在系统的能量广泛的标准热力学极限下变得奇异。同时，如果允许超扩张能量缩放，MBL制度似乎是稳定的。我们表明，可以通过对多体腔量子电动力学设置的时间动力学的研究来实验验证我们的发现。 “淬火光谱”是一种特别有效的工具，它使我们能够系统地研究时间动态的能量依赖性并研究系统中的移动性边缘。
Many-body localization (MBL) behavior is analyzed {in an extended Bose-Hubbard model with quasiperiodic infinite-range interactions. No additional disorder is present. Examining level statistics and entanglement entropy of eigenstates we show that a significant fraction of eigenstates of the system is localized in the presence of strong interactions. In spite of this, our results suggest that the system becomes ergodic in the standard thermodynamic limit in which the energy of the system is extensive. At the same time, the MBL regime seems to be stable if one allows for a super-extensive scaling of the energy. We show that our findings can be experimentally verified by studies of time dynamics in many-body cavity quantum electrodynamics setups. The "quench spectroscopy" is a particularly effective tool that allows us to systematically study energy dependence of time dynamics and to investigate a mobility edge in our system.
