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Current relaxation in nonlinear random media

Tsampikos Kottos·Matthias Weiss
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Abstract

We study the current relaxation of a wave packet in a nonlinear random sample coupled to the continuum and show that the survival probability decays as $P(t) \sim 1/t^α$. For intermediate times $t χ_{\rm cr}$ we find a universal decay with $α=2/3$ which is a signature of the {\it nonlinearity-induced delocalization}. Experimental evidence should be observable in coupled nonlinear optical waveguides.

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Tsampikos Kottos, Matthias Weiss. 2004-10-18. Current relaxation in nonlinear random media. https://doi.org/10.1103/physrevlett.93.190604

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