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Non-perturbative localization for quasi-periodic Jacobi block matrices

Mathematical Physics 2023-09-08 v1 Dynamical Systems math.MP Spectral Theory Quantum Physics

Abstract

We prove non-perturbative Anderson localization for quasi-periodic Jacobi block matrix operators assuming non-vanishing of all Lyapunov exponents. The base dynamics on tori Tb\mathbb{T}^b is assumed to be a Diophantine rotation. Results on arithmetic localization are obtained for b=1b=1, and applications to the skew shift, stacked graphene, XY spin chains, and coupled Harper models are discussed.

Cite

@article{arxiv.2309.03423,
  title  = {Non-perturbative localization for quasi-periodic Jacobi block matrices},
  author = {Rui Han and Wilhelm Schlag},
  journal= {arXiv preprint arXiv:2309.03423},
  year   = {2023}
}

Comments

56 pages

R2 v1 2026-06-28T12:14:52.945Z