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Nonhermitean Random Matrix Models : a Free Random Variable Approach

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arxiv hep-ph/9609491 v1 pith:7QNE7LNY submitted 1996-09-26 hep-ph chao-dyncond-mathep-thnlin.CDnucl-th

Nonhermitean Random Matrix Models : a Free Random Variable Approach

classification hep-ph chao-dyncond-mathep-thnlin.CDnucl-th
keywords randomfreemodelsnonhermiteanclassconceptsmatrixvariables
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Using the standard concepts of free random variables, we show that for a large class of nonhermitean random matrix models, the support of the eigenvalue distribution follows from their hermitean analogs using a conformal transformation. We also extend the concepts of free random variables to the class of nonhermitean matrices, and apply them to the models discussed by Ginibre-Girko (elliptic ensemble) and Mahaux-Weidenm\"uller (chaotic resonance scattering).

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