论文标题

全息图中ABC堆叠的多层石墨烯

ABC-stacked multilayer graphene in holography

论文作者

Seo, Jeong-Won, Yuk, Taewon, Han, Young-Kwon, Sin, Sang-Jin

论文摘要

可以在简单系统中实现的无限强耦合来研究平面频带。因此,它的全息知识应该很有趣。 Laia和Tong通过引入特定的边界术语来实现整个动量区域的平坦带。在这里,我们使用散装相互作用项而不是边界项给出了在有限的动量空间区域上具有平坦带的模型。我们发现我们的模型的频谱与ABC堆叠的多层石墨烯的频谱完全类似。在具有化学电位的情况下,平面带在我们的全息图中弯曲,该模型非常接近由于自旋轨道而导致的带变形

A flat band can be studied an infinitely strong coupling, realized in a simple system. Therefore, its holographic realization should be interesting. Laia and Tong gave a realization of the flat band over the entire momentum region by introducing a particular boundary term. Here, we give a model with a flat band over a finite region of momentum space using a bulk interaction term instead of the boundary term. We find that the spectrum of our model is precisely analogous to that of the ABC stacked multilayer graphene. In the presence of the chemical potential, the flat band is bent in our holographic model, which is very close to the band deformation due to the spin-orbit

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