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Bulk Universality for Generalized Wigner Matrices With Few Moments by Aggarwal, Amol is a scholarly article available to read on EtoBox.

What is Bulk Universality for Generalized Wigner Matrices With Few Moments about?

In this paper we consider $N \times N$ real generalized Wigner matrices whose entries are only assumed to have finite $(2 + \varepsilon)$-th moment for some fixed, but arbitrarily small, $\varepsilon > 0$. We show that the Stieltjes transforms $m_N (z)$ of these matrices satisfy a weak local semicircle law on the nearly smallest possible scale, when $\eta = \Im (z)$ is almost of order $N^{-1}$. As a consequence, we establish bulk universality for local spectral statistics of these matrices at fixed energy levels, both in terms of eigenvalue gap distributions and correlation functions, meaning that these statistics converge to those of the Gaussian Orthogonal Ensemble (GOE) in the large $N$ limit.

Author

Aggarwal, Amol

Published

2016

Language

EN