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Stochastic non-Hermitian skin effect

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arxiv 2008.06470 v1 pith:OFMK3I4G submitted 2020-08-14 physics.optics cond-mat.mes-hallquant-ph

Stochastic non-Hermitian skin effect

classification physics.optics cond-mat.mes-hallquant-ph
keywords effectnon-hermitianlightskinstochastichoppinglatticestransport
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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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