Geometrically induced spectrum in curved leaky wires

We study measure perturbations of the Laplacian in $L^2(\R^2)$ supported by an infinite curve $Γ$ in the plane which is asymptotically straight in a suitable sense. We show that if $Γ$ is not a straight line, such a ``leaky quantum wire'' has at least one bound state below the threshold of the essential spectrum.

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