论文标题
提取具有假想矢量电势的许多身体定位长度
Extracting many body localization lengths with an imaginary vector potential
论文作者
论文摘要
研究多体定位过渡的一个挑战是定义在过渡到ergodic阶段的长度尺度。在本手稿中，我们探索具有假想磁通量的现场障碍的环的定位特性。我们将假想的通量与开放链的定位长度隔离了安德森 - 位置环的单粒子轨道。因此，我们以逆定位长度识别每个位点的DELEACALIZERINION通量。我们通过探索无序相互作用链的相位图来将这种直觉放在使用中，并发现每个键的逆向通量提供了对过渡及其不同定位长度的可访问描述。
One challenge of studying the many-body localization transition is defining the length scale that diverges upon the transition to the ergodic phase. In this manuscript we explore the localization properties of a ring with onsite disorder subject to an imaginary magnetic flux. We connect the imaginary flux which delocalizes single-particle orbitals of an Anderson-localized ring with the localization length of an open chain. We thus identify the delocalizing imaginary flux per site with the inverse localization length. We put this intuition to use by exploring the phase diagram of a disordered interacting chain, and find that the inverse imaginary flux per bond provides an accessible description of the transition and its diverging localization length.
