Averages of Exponentials from the point of view of Superintegrability

Fuente: arXiv
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Autor principal: Morozov, A.
Formato: Preprint
Publicado: 2026
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author Morozov, A.
author_facet Morozov, A.
contents We calculate Gaussian averages of arbitrary exponentials of the matrix variable $X$ with the help of superintegrability, which provides explicit expressions for Schur averages. As in the simpler cases the answer is expressed in terms of Laguerre polynomials, but in a somewhat sophisticated way. It involves triangular sum over partitions, with simple exponential factor and a complicated polynomial prefactor. Some ingredients of the formula are not found in full generality and there is still a room for further work.
format Preprint
id arxiv_https___arxiv_org_abs_2601_20213
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Averages of Exponentials from the point of view of Superintegrability
Morozov, A.
High Energy Physics - Theory
Mathematical Physics
We calculate Gaussian averages of arbitrary exponentials of the matrix variable $X$ with the help of superintegrability, which provides explicit expressions for Schur averages. As in the simpler cases the answer is expressed in terms of Laguerre polynomials, but in a somewhat sophisticated way. It involves triangular sum over partitions, with simple exponential factor and a complicated polynomial prefactor. Some ingredients of the formula are not found in full generality and there is still a room for further work.
title Averages of Exponentials from the point of view of Superintegrability
topic High Energy Physics - Theory
Mathematical Physics
url https://arxiv.org/abs/2601.20213