English

Local eigenvalue statistics for higher-rank Anderson models after Dietlein-Elgart

Mathematical Physics 2022-08-09 v1 math.MP

Abstract

We use the method of eigenvalue level spacing developed by Dietlein and Elgart (arXiv:1712.03925) to prove that the local eigenvalue statistics (LES) for the Anderson model on ZdZ^d, with uniform higher-rank m2m \geq 2, single-site perturbations, is given by a Poisson point process with intensity measure n(E0) dsn(E_0)~ds, where n(E0)n(E_0) is the density of states at energy E0E_0 in the region of localization near the spectral band edges. This improves the result of Hislop and Krishna (arXiv:1809.01236), who proved that the LES is a compound Poisson process with L\'evy measure supported on the set {1,2,,m}\{1, 2, \ldots, m \}. Our proofs are an application of the ideas of Dieltein and Elgart to these higher-rank lattice models with two spectral band edges, and illustrate, in a simpler setting, the key steps of the proof of Dieltein and Elgart.

Cite

@article{arxiv.2208.03598,
  title  = {Local eigenvalue statistics for higher-rank Anderson models after Dietlein-Elgart},
  author = {Samuel Herschenfeld and Peter D. Hislop},
  journal= {arXiv preprint arXiv:2208.03598},
  year   = {2022}
}

Comments

33 pages

R2 v1 2026-06-25T01:32:29.042Z