论文标题

随机非铁皮皮肤效应

Stochastic non-Hermitian skin effect

论文作者

Longhi, Stefano

论文摘要

具有不对称跳跃的非热晶格中光子传输的标志是光的稳健单向流动,这是导致重要现象(例如非铁皮皮肤效应)的重要现象。在这里,我们表明,在平均保持对称跳跃的晶格中,随机波动可以引起相同的效果。我们通过讨论光的随机漏斗来说明这种波动引起的非热运输,其中通过随机诱导的皮肤效应将光推向界面。

A hallmark of photonic transport in non-Hermitian lattices with asymmetric hopping is the robust unidirectional flow of light, which is responsible for important phenomena such as the non-Hermitian skin effect. Here we show that the same effect can be induced by stochastic fluctuations in lattices which maintain a symmetric hopping on average. We illustrate such a fluctuation-induced non-Hermitian transport by discussing stochastic funneling of light, in which light is pushed toward an interface by the stochastic-induced skin effect.

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