论文标题
通过分子轨道表示拓扑平流模型的系统构建
Systematic construction of topological flat-band models by molecular-orbital representation
论文作者
论文摘要
根据描述通用平板模型的“分子 - 轨道”表示，我们提出了一种系统的方式来构建具有具有拓扑性质的有限范围的型望远镜的一类平流模型。在这些模型中，拓扑性质不是编码为平坦频段本身，而是在触摸平坦带的分散带中。这种带状结构可能成为由扁平带，拓扑和相关性结合而引起的异国情调现象的来源。
On the basis of the "molecular-orbital" representation which describes generic flat-band models, we propose a systematic way to construct a class of flat-band models with finite-range hoppings that have topological natures. In these models, the topological natures are encoded not into the flat band itself but into the dispersive bands touching the flat band. Such a band structure may become a source of exotic phenomena arising from the combination of flat bands, topology and correlations.
