标题： 光诱导的谷陈数和非扭曲莫尔石墨烯-六方氮化硼超晶格中的平带跃迁 显示英文标题

标题： Light induced transitions of valley Chern numbers and flat bands in a non-twisted moire graphene-hexagonal boron nitride superlattice

摘要： 受扭曲莫尔材料在光照下的丰富拓扑结构和有趣的准带结构的启发，我们研究了在光照影响下的非扭曲莫尔材料。 我们的工作部分是出于寻找一种更容易合成的平台，以帮助实验阐明莫尔材料与光耦合的有趣物理现象。 类似于扭曲莫尔材料，我们发现了丰富的拓扑结构和有趣的能带平坦化效应，我们在相关的图表中进行了总结，例如拓扑相图。 我们的工作表明，即使在更易于实验研究的非扭曲莫尔平台上，电磁波影响下扭曲莫尔材料的许多有趣现象似乎也普遍存在，这些平台仍可以通过光高度调节。 显示英文摘要

摘要： Motivated by the rich topology and interesting quasi-band structure of twisted moire materials subjected to light, we study a non-twisted moire material under the influence of light. Our work is in part motivated by a desire to find an easier-to-synthesize platform that can help experimentally elucidate the interesting physics of moir\'e materials coupled to light. Similar to twisted moire materials, we uncover rich topology and interesting band flattening effects, which we summarize in relevant plots such as a topological phase diagram. Our work demonstrates that much of the interesting phenomenology of twisted moire materials under the influence of electromagnetic waves seems to be generically present even in more experimentally accessible untwisted moire platforms, which remain highly tunable by light.