Fluctuations in the logarithmic energy for zeros of random polynomials on the sphere

Fuente: arXiv
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Autori principali: Michelen, Marcus, Yakir, Oren
Natura: Preprint
Pubblicazione: 2023
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author Michelen, Marcus
Yakir, Oren
author_facet Michelen, Marcus
Yakir, Oren
contents Smale's Seventh Problem asks for an efficient algorithm to generate a configuration of $n$ points on the sphere that nearly minimizes the logarithmic energy. As a candidate starting configuration for this problem, Armentano, Beltrán and Shub considered the set of points given by the stereographic projection of the roots of the random elliptic polynomial of degree $n$ and computed the expected logarithmic energy. We study the fluctuations of the logarithmic energy associated to this random configuration and prove a central limit theorem. Our approach shows that all cumulants of the logarithmic energy are asymptotically linear in $n$, and hence the energy is well-concentrated on the scale of $\sqrt{n}$.
format Preprint
id arxiv_https___arxiv_org_abs_2304_02898
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Fluctuations in the logarithmic energy for zeros of random polynomials on the sphere
Michelen, Marcus
Yakir, Oren
Probability
Mathematical Physics
Classical Analysis and ODEs
Smale's Seventh Problem asks for an efficient algorithm to generate a configuration of $n$ points on the sphere that nearly minimizes the logarithmic energy. As a candidate starting configuration for this problem, Armentano, Beltrán and Shub considered the set of points given by the stereographic projection of the roots of the random elliptic polynomial of degree $n$ and computed the expected logarithmic energy. We study the fluctuations of the logarithmic energy associated to this random configuration and prove a central limit theorem. Our approach shows that all cumulants of the logarithmic energy are asymptotically linear in $n$, and hence the energy is well-concentrated on the scale of $\sqrt{n}$.
title Fluctuations in the logarithmic energy for zeros of random polynomials on the sphere
topic Probability
Mathematical Physics
Classical Analysis and ODEs
url https://arxiv.org/abs/2304.02898