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arxiv: 1409.2328 · v1 · pith:GZO6S5H6new · submitted 2014-09-08 · 🧮 math-ph · math.MP· math.SP

Eigenvalue statistics for random Schrodinger operators with non rank one perturbations

classification 🧮 math-ph math.MPmath.SP
keywords randomassociatedeigenvalueperturbationsprovestatisticsvariablescertain
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We prove that certain natural random variables associated with the local eigenvalue statistics for generalized lattice Anderson models constructed with finite-rank perturbations are compound Poisson distributed. This distribution is characterized by the fact that the Levy measure is supported on at most a finite set determined by the rank. The proof relies on a Minami-type estimate for finite-rank perturbations. For Anderson-type continuum models on $\R^d$, we prove a similar result for certain natural random variables associated with the local eigenvalue statistics. We prove that the compound Poisson distribution associated with these random variables has a Levy measure whose support is at most the set of positive integers.

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