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Free Random Levy Matrices

2000/11/27 by Z. Burda, Romuald A. Janik, Burda, Z. +13
Mathematics · Physics and Astronomy · #Random Matrices and Applications #Stochastic processes and statistical mechanics #Theoretical and Computational Physics #cond-mat.mes-hall

paper · pdf · doi:10.48550/arxiv.cond-mat/0011451

5 pages

arxiv created 2000/11/27 · arxiv updated 2009/11/30

Abstract

Using the theory of free random variables (FRV) and the Coulomb gas analogy, we construct stable random matrix ensembles that are random matrix generalizations of the classical one-dimensional stable Lévy distributions. We show that the resolvents for the corresponding matrices obey transcendental equations in the large size limit. We solve these equations in a number of cases, and show that the eigenvalue distributions exhibit Lévy tails. For the analytically known Lévy measures we explicitly construct the density of states using the method of orthogonal polynomials. We show that the Lévy tail-distributions are characterized by a novel form of microscopic universality.

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