论文标题
具有拓扑缺陷的Fano-Anderson链中的传输
Transmission in a Fano-Anderson chain with a topological defect
论文作者
论文摘要
Fano-Anderson链由一个线性晶格组成，带有离散的侧单元，并且由于侧单位离散状态与紧密结合连续体之间的离散状态之间的耦合而表现出FANO循环散射。我们研究了拓扑非平凡的侧单元的Fano共声辅助运输。我们发现侧单元的拓扑影响会影响透射特性，因此可以成为侧单元拓扑阶段的有效检测工具。此外，我们探讨了线性紧密结合链和侧单元之间双重联系的作用。主链和侧单元之间的二次连接可以修改传输概率中Fano共振倾角的位置或宽度，从而产生额外的控制。
The Fano-Anderson chain consists of a linear lattice with a discrete side-unit, and exhibits Fano-resonant scattering due to coupling between the discrete states of the side-unit with the tight-binding continuum. We study Fano-resonance-assisted transport for the case of a topologically non-trivial side unit. We find that the topology of the side unit influences the transmission characteristics which thus can be an effective detection tool of the topological phases of the side unit. Furthermore, we explore the role of dual links between the linear tight-binding chain and the side unit. The secondary connection between the main chain and the side unit can modify the position or width of the Fano resonance dip in the transmission probability, and thus yield additional control.
