Abstract In this paper, we investigate the continuum longitudinal conductivity σ x x r e g ( ω ) in the neighborhood of the phase transition of the topological charge in topological insulators models in (4+1)-D dimensions employing the Kubo formalism of the linear response theory. We analyze the effect of the topological phase transition of the sudden variation of the second Chern number Q 2 on AC conductivity in higher dimensions.

中文翻译：

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(4 + 1)-D 维拓扑绝缘体模型中的传输

摘要 在本文中，我们使用线性响应理论的 Kubo 形式研究了 (4+1)-D 维拓扑绝缘体模型中拓扑电荷相变附近的连续纵向电导率 σ xxreg ( ω )。我们分析了第二个陈数 Q 2 突然变化的拓扑相变对更高维度交流电导率的影响。