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arXiv 2002.09374cond-mat.mes-hallcond-mat.other
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绝缘体外的拓扑手征界面态

Topological chiral interface states beyond insulators

Lavi K. Upreti, P. Delplace

摘要:

我们展示了如何在一个无隙系统中设计一个界面态的手征谱流。虽然散装带接触-从而使拓扑指数的频带不明确-这种频谱流有一个拓扑的起源,使它强大的,即使它与散装带共存。这种现象说明了一个调制的光子量子行走。

英文摘要:

We show how to engineer a chiral spectral flow of interface states in a gapless system. Although the bulk bands touch -- thus making the topological indices of the bands ill-defined -- this spectral flow has a topological origin that makes it robust even when it coexists with the bulk bands. This phenomenon is illustrated with an adiabatically modulated photonic quantum walk.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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