论文标题
多体定位的通用光谱形式
Universal spectral form factor for many-body localization
论文作者
论文摘要
我们从理论上研究了多体裂料系统的频谱中存在的相关性。可以获得对泊松光谱的光谱形式的确切分析表达，并证明与表现出多体裂解的两个模型上的数值结果非常吻合：一个基于本地运动积分的存在，一个量子误解链和一个现象学$ l $ bit模型。我们还确定了一种对全球状态密度以及光谱边缘效应不敏感的普遍制度。
We theoretically study correlations present deep in the spectrum of many-body-localized systems. An exact analytical expression for the spectral form factor of Poisson spectra can be obtained and is shown to agree well with numerical results on two models exhibiting many-body-localization: a disordered quantum spin chain and a phenomenological $l$-bit model based on the existence of local integrals of motion. We also identify a universal regime that is insensitive to the global density of states as well as spectral edge effects.
