论文标题
从紧凑的局部状态解码平坦乐队
Decoding flat bands from compact localized states
论文作者
论文摘要
平坦带系统是研究由电子电子相关效应产生的万花筒的理想量子平台。实现平坦频段的中心要素是找到其紧凑的局部状态。在这项工作中，我们开发了一种系统的方式来通过从一维链中设计破坏性干扰模式来生成紧凑的局部状态。使用此方法构建了各种二维新的平面系统。此外，我们表明该方法可以扩展以通过仔细设计块跳跃方案以及准晶体和疾病系统来生成紧凑型局部状态。
The flat band system is an ideal quantum platform to investigate the kaleidoscope created by the electron-electron correlation effects. The central ingredient of realizing a flat band is to find its compact localized states. In this work, we develop a systematic way to generate the compact localized states by designing destructive interference pattern from 1-dimensional chains. A variety of 2-dimensional new flat band systems are constructed with this method. Furthermore, we show that the method can be extended to generate the compact localized states in multi-orbital systems by carefully designing the block hopping scheme, as well as in quasicrystal and disorder systems.
