Characteristic polynomials of non-Hermitian random band matrices

Mariya Shcherbina (Institute for Low Temperature Physics)

Apr 16. 2026, 14:00 — 15:00

We discuss the asymptotic local behavior of the second correlation function of characteristic polynomials for a certain class of Gaussian N X N non-Hermitian random band matrices with a bandwidth W. Given W,N → ∞, we show that this behavior near the point in the bulk of the spectrum exhibits the crossover at W ∼√N: it coincides with those for Ginibre ensemble for W ≫√N, and factorized as 1 ≪ W ≪√N. We also consider the behavior of the correlation function near the threshold (W/√N →C).

Further Information
Venue:
ESI Boltzmann Lecture Hall
Associated Event:
Random Matrices and Operators (Workshop)
Organizer(s):
Nathanael Berestycki (U of Vienna)
Paul Bourgade (CIMS, New York)
Giorgio Cipolloni (U Tor Vergata, Rome)