Shape of eigenvectors for the decaying potential model

DOI10.1007/S00023-022-01222-9arXiv2203.03125MaRDI QIDQ6392966

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Publication date: 6 March 2022

Abstract: We consider the 1d Schr"odinger operator with decaying random potential, and study the joint scaling limit of the eigenvalues and the measures associated with the corresponding eigenfunctions which is based on the formulation by Rifkind-Virag. As a result, we have completely different behavior depending on the decaying rate $alpha>0$ of the potential : the limiting measure is equal to (1) Lebesgue measure for the super-critical case ($alpha>1/2$), (2) a measure of which the density has power-law decay with Brownian fluctuation for critical case ($alpha=1/2$), and (3) the delta measure with its atom being uniformly distributed for the sub-critical case($alpha<1/2$). This result is consistent with previous study on spectral and statistical properties.

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