Bulk universality for Wigner hermitian matrices with subexponential decay
Abstract
We consider the ensemble of Wigner hermitian matrices that generalize the Gaussian unitary ensemble (GUE). The matrix elements are given by , where for are i.i.d. random variables with mean zero and variance 1/2, and have mean zero and variance 1. We assume the distribution of to have subexponential decay. In a recent paper, four of the authors recently established that the gap distribution and averaged -point correlation of these matrices were \emph{universal} (and in particular, agreed with those for GUE) assuming additional regularity hypotheses on the . In another recent paper, the other two authors, using a different method, established the same conclusion assuming instead some moment and support conditions on the . In this short note we observe that the arguments of these two papers can be combined to establish universality of the gap distribution and averaged -point correlations for all Wigner matrices (with subexponentially decaying entries), with no extra assumptions.
Keywords
Cite
@article{arxiv.0906.4400,
title = {Bulk universality for Wigner hermitian matrices with subexponential decay},
author = {Laszlo Erdos and Jose Ramirez and Benjamin Schlein and Terence Tao and Van Vu and Horng-Tzer Yau},
journal= {arXiv preprint arXiv:0906.4400},
year = {2010}
}
Comments
9 pages, no figures, submitted, Math. Res. Lett