Quantum Mixing for Schrödinger eigenfunctions in Benjamini-Schramm limit

Fuente: arXiv
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Main Authors: Hippi, Kai, Lequen, Félix, Mikkelsen, Søren, Sahlsten, Tuomas, Ueberschär, Henrik
Format: Preprint
Published: 2026
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_version_ 1866910160425844736
author Hippi, Kai
Lequen, Félix
Mikkelsen, Søren
Sahlsten, Tuomas
Ueberschär, Henrik
author_facet Hippi, Kai
Lequen, Félix
Mikkelsen, Søren
Sahlsten, Tuomas
Ueberschär, Henrik
contents Let $-Δ_{\mathbb{H}}+V$ be the Schrödinger operator on $\mathbb{H}$ where $V \in L^p(\mathbb{H}) \cap L^\infty(\mathbb{H})$ for some $p > 0$. If $(X_n)$ is a uniformly discrete sequence of compact hyperbolic surfaces with a uniform spectral gap that Benjamini-Schramm converges to $\mathbb{H}$, we prove quantum mixing for the eigenfunctions of $-Δ_{X_n}+V_n$ in any sufficiently large spectral window $I$, where $V_n$ is the potential on $X_n$ induced by $V$. These apply to large degree lifts of a potential on a base surface such as congruence covers of arithmetic surfaces, with high probability to random hyperbolic surfaces in the Weil-Petersson model of large genus, and to Hartree one-particle operators arising in thermodynamic limit of many-body Bose gas on hyperbolic surfaces. The proof uses the Duhamel formula for the hyperbolic wave equation together with exponential mixing of the geodesic flow on $T^1 X_n$.
format Preprint
id arxiv_https___arxiv_org_abs_2604_21582
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Quantum Mixing for Schrödinger eigenfunctions in Benjamini-Schramm limit
Hippi, Kai
Lequen, Félix
Mikkelsen, Søren
Sahlsten, Tuomas
Ueberschär, Henrik
Spectral Theory
Mathematical Physics
Differential Geometry
Dynamical Systems
81Q50, 37D40, 11F72
Let $-Δ_{\mathbb{H}}+V$ be the Schrödinger operator on $\mathbb{H}$ where $V \in L^p(\mathbb{H}) \cap L^\infty(\mathbb{H})$ for some $p > 0$. If $(X_n)$ is a uniformly discrete sequence of compact hyperbolic surfaces with a uniform spectral gap that Benjamini-Schramm converges to $\mathbb{H}$, we prove quantum mixing for the eigenfunctions of $-Δ_{X_n}+V_n$ in any sufficiently large spectral window $I$, where $V_n$ is the potential on $X_n$ induced by $V$. These apply to large degree lifts of a potential on a base surface such as congruence covers of arithmetic surfaces, with high probability to random hyperbolic surfaces in the Weil-Petersson model of large genus, and to Hartree one-particle operators arising in thermodynamic limit of many-body Bose gas on hyperbolic surfaces. The proof uses the Duhamel formula for the hyperbolic wave equation together with exponential mixing of the geodesic flow on $T^1 X_n$.
title Quantum Mixing for Schrödinger eigenfunctions in Benjamini-Schramm limit
topic Spectral Theory
Mathematical Physics
Differential Geometry
Dynamical Systems
81Q50, 37D40, 11F72
url https://arxiv.org/abs/2604.21582