Spectral properties of Levy Rosenzweig-Porter model via supersymmetric approach

By using the Efetov's super-symmetric formalism we computed analytically the mean spectral density $\rho(E)$ for the Lévy and the Lévy -Rosenzweig-Porter random matrices which off-diagonal elements are strongly non-Gaussian with power-law tails. This makes the standard Hubbard-Stratonovich tran...

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Bibliographic Details
Main Author: Elizaveta Safonova, Mikhail Feigel'man, Vladimir Kravtsov
Format: Article
Language:English
Published: SciPost 2025-01-01
Series:SciPost Physics
Online Access:https://scipost.org/SciPostPhys.18.1.010
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