Mesoscopic Universality for Circular Orthogonal Polynomial Ensembles

Fuente: arXiv
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Auteurs principaux: Breuer, Jonathan, Ofner, Daniel
Format: Preprint
Publié: 2024
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author Breuer, Jonathan
Ofner, Daniel
author_facet Breuer, Jonathan
Ofner, Daniel
contents We study mesoscopic fluctuations of orthogonal polynomial ensembles on the unit circle. We show that asymptotics of such fluctuations are stable under decaying perturbations of the recurrence coefficients, where the appropriate decay rate depends on the scale considered. By directly proving Gaussian limits for certain constant coefficient ensembles, we obtain mesoscopic scale Gaussian limits for a large class of orthogonal polynomial ensembles on the unit circle. As a corollary we prove mesocopic central limit theorems (for all mesoscopic scales) for the $β=2$ circular Jacobi ensembles with real parameter $δ>-1/2$.
format Preprint
id arxiv_https___arxiv_org_abs_2409_09803
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Mesoscopic Universality for Circular Orthogonal Polynomial Ensembles
Breuer, Jonathan
Ofner, Daniel
Mathematical Physics
Probability
60B20
We study mesoscopic fluctuations of orthogonal polynomial ensembles on the unit circle. We show that asymptotics of such fluctuations are stable under decaying perturbations of the recurrence coefficients, where the appropriate decay rate depends on the scale considered. By directly proving Gaussian limits for certain constant coefficient ensembles, we obtain mesoscopic scale Gaussian limits for a large class of orthogonal polynomial ensembles on the unit circle. As a corollary we prove mesocopic central limit theorems (for all mesoscopic scales) for the $β=2$ circular Jacobi ensembles with real parameter $δ>-1/2$.
title Mesoscopic Universality for Circular Orthogonal Polynomial Ensembles
topic Mathematical Physics
Probability
60B20
url https://arxiv.org/abs/2409.09803