与非均匀性浴相互作用的局域链的非常规热化
无序系统与神经网络
2026-05-14 v3 统计力学
量子物理
摘要
许多体localized (MBL) 阶段的研究不可避免地将谱性质与本征态特征联系起来:局域化系统表现为 Poisson level statistics 和 area-law entanglement entropy,而均匀性系统显示 volume-law entanglement 并遵循 random matrix theory 预测,包括 level repulsion。本文引入 interacting Anderson Quantum Sun model,显著偏离这些 conventional expectations。在除标准局域化和均匀性相位外,我们识别出一种 exhibits volume-law entanglement 同时 coexisting with intermediate spectral statistics 的 regime。我们还识别另一 nonstandard regime,表现为 Poisson level statistics、sub-volume entanglement growth 以及 rare-event-dominated correlations,指向 emerging ergodic instabilities。这些结果凸显了ergodicity breaking 的非常规途径,提供了 Anderson localization 如何被 destabilized 的新视角。
关键词
引用
@article{arxiv.2507.18286,
title = {Unconventional Thermalization of a Localized Chain Interacting with an Ergodic Bath},
author = {Konrad Pawlik and Nicolas Laflorencie and Jakub Zakrzewski},
journal= {arXiv preprint arXiv:2507.18286},
year = {2026}
}
备注
version close to that accepted as PRB Letters