论文标题
一个中等Landau级混合强度的异常重入5/2量子厅阶段
An Anomalous Reentrant 5/2 Quantum Hall Phase at Moderate Landau-Level-Mixing Strength
论文作者
论文摘要
在最近的热门电导率测量中，成功探测了中性主体模式，旨在支持颗粒 - 孔对称PFAFFIAN（pH-PF）拓扑顺序，与PFAFFIAN或抗Pfaffian相的理论预测形成了鲜明对比。在这里，我们报告了一个重入异常量化相位，发现在热力学极限中，与传统的Pfaffian，抗Pfaffian或pH-PF阶段不同，在Landau水平混合的中间强度下。我们提出的与球形几何形状中pH-PF移位一致的波功能正确地捕获了此阶段的拓扑顺序，因为它与确切的基态的重叠非常高，并且繁殖了低覆盖的纠缠光谱。对于此阶段发现的通量偏移，无论磁通变化如何，都可能证实了实验发现的拓扑顺序。
A successful probing of neutral Majorana mode in recent thermal Hall conductivity measurements opines in favor of the particle-hole symmetric Pfaffian (PH-Pf) topological order, contrasting the theoretical predictions of Pfaffian or anti-Pfaffian phases. Here we report a reentrant anomalous quantized phase which is found to be gapped in the thermodynamic limit, distinct from the conventional Pfaffian, anti-Pfaffian, or PH-Pf phases, at an intermediate strength of Landau level mixing. Our proposed wave function consistent with the PH-Pf shift in spherical geometry rightly captures the topological order of this phase, as its overlap with the exact ground state is very high and it reproduces low-lying entanglement spectra. A unique topological order, irrespective of the flux shifts, found for this phase possibly corroborates the experimentally found topological order.
