论文标题
紧张的Moiré晶格中的半古典量化条件
Semiclassical quantization conditions in strained moiré lattices
论文作者
论文摘要
在本文中,我们将标量符号的Bohr-Sommerfeld规则推广到潜在的井中,以构成具有特征值的基质值符号,这些符号可能会恰好在井的底部合并。作为一种应用,我们研究了Moiré异质结构中大约平坦的频带的存在,例如Timmel和Mele最近引入的模型,例如紧张的二维蜂窝晶格。
In this article we generalize the Bohr-Sommerfeld rule for scalar symbols at a potential well to matrix-valued symbols having eigenvalues that may coalesce precisely at the bottom of the well. As an application, we study the existence of approximately flat bands in moiré heterostructures such as strained two-dimensional honeycomb lattices in a model recently introduced by Timmel and Mele.