量子图输运中的拓扑体边效应
Topological bulk-edge effects in quantum graph transport
摘要：
我们研究了周期量子图中的量子输运问题，该图中的顶点耦合对时间反演是非不变的。它表明，图形拓扑结构可能发挥决定性的作用，说明这一要求的导电性能与两个例子。在第一种情况下，运输是可能的，在高能量的散装只被抑制在样品的边缘，而在第二个的情况是相反的，运输是可能的，只有在边缘。
英文摘要：
We examine quantum transport in periodic quantum graphs with a vertex coupling non-invariant with respect to time reversal. It is shown that the graph topology may play a decisive role in the conductivity properties illustrating this claim with two examples. In the first, the transport is possible at high energies in the bulk only being suppressed at the sample edges, while in the second one the situation is opposite, the transport is possible at the edge only.
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