Central Limit Theorem for tensor products of free variables

Abstract We establish a Central Limit Theorem for tensor product random variables $c_k:=a_k \otimes a_k$ , where $(a_k)_{k \in \mathbb {N}}$ is a free family of variables. We show that if the variables $a_k$ are centered, the limiting law is the semi-circle. Otherwise, the limiting law depends on the mean and variance of the variables $a_k$ and corresponds to a free interpolation between the semi-circle law and the classical convolution of two semi-circle laws.

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Publication Details

Journal
Canadian Journal of Mathematics
Published
2024-12-16
DOI
https://doi.org/10.4153/s0008414x24001147
Citations
2
Primary Topic
Probability and Risk Models
Type
article
Field-Weighted Citation Impact
0.98

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article

Central Limit Theorem for tensor products of free variables

Cécilia Lancien, Patrick Oliveira Santos, Pierre Youssef
2 citations
Canadian Journal of Mathematics
Probability and Risk Models
0.98
article

Central Limit Theorem for tensor products of free variables

Cécilia Lancien, Patrick Oliveira Santos, Pierre Youssef
article en
2 citations

Abstract

Abstract We establish a Central Limit Theorem for tensor product random variables $c_k:=a_k \otimes a_k$ , where $(a_k)_{k \in \mathbb {N}}$ is a free family of variables. We show that if the variables $a_k$ are centered, the limiting law is the semi-circle. Otherwise, the limiting law depends on the mean and variance of the variables $a_k$ and corresponds to a free interpolation between the semi-circle law and the classical convolution of two semi-circle laws.

Canadian Journal of Mathematics
New York University Abu Dhabi (AE), Centre National de la Recherche Scientifique (FR), Université Paris-Est Créteil (FR), Laboratoire d’Analyse et de Mathématiques Appliquées (FR), Université Gustave Eiffel (FR), Institut Fourier (FR), Institut des langues et cultures d'Europe, Amérique, Afrique, Asie et Australie (FR), Université Grenoble Alpes (FR)
New York University Abu Dhabi, Agence Nationale de la Recherche, Université Gustave Eiffel
Peace, Justice and strong institutions
Openalex Percentile: Top 24%
Probability and Risk Models
0.98
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