Anderson localized states for the nonlinear Maryland model on $\mathbb{Z}^d$

Fuente: arXiv
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Auteurs principaux: Liu, Shihe, Shi, Yunfeng, Zhang, Zhifei
Format: Preprint
Publié: 2025
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author Liu, Shihe
Shi, Yunfeng
Zhang, Zhifei
author_facet Liu, Shihe
Shi, Yunfeng
Zhang, Zhifei
contents In this paper, we investigate Anderson localization for a nonlinear perturbation of the Maryland model $H=\varepsilonΔ+\cotπ(θ+j\cdotα)δ_{j,j'}$ on $\mathbb{Z}^d$. Specifically, if $\varepsilon,δ$ are sufficiently small, we construct a large number of time quasi-periodic and space exponentially decaying solutions (i.e., Anderson localized states) for the equation $i\frac{\partial u}{\partial t}=Hu+δ|u|^{2p}u$ with a Diophantine $α$. Our proof combines eigenvalue estimates of the Maryland model with the Craig-Wayne-Bourgain method, which originates from KAM theory for Hamiltonian PDEs.
format Preprint
id arxiv_https___arxiv_org_abs_2502_16397
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Anderson localized states for the nonlinear Maryland model on $\mathbb{Z}^d$
Liu, Shihe
Shi, Yunfeng
Zhang, Zhifei
Analysis of PDEs
Mathematical Physics
Dynamical Systems
Spectral Theory
In this paper, we investigate Anderson localization for a nonlinear perturbation of the Maryland model $H=\varepsilonΔ+\cotπ(θ+j\cdotα)δ_{j,j'}$ on $\mathbb{Z}^d$. Specifically, if $\varepsilon,δ$ are sufficiently small, we construct a large number of time quasi-periodic and space exponentially decaying solutions (i.e., Anderson localized states) for the equation $i\frac{\partial u}{\partial t}=Hu+δ|u|^{2p}u$ with a Diophantine $α$. Our proof combines eigenvalue estimates of the Maryland model with the Craig-Wayne-Bourgain method, which originates from KAM theory for Hamiltonian PDEs.
title Anderson localized states for the nonlinear Maryland model on $\mathbb{Z}^d$
topic Analysis of PDEs
Mathematical Physics
Dynamical Systems
Spectral Theory
url https://arxiv.org/abs/2502.16397