Random Geometry in the Spectral Measure of the Circular Beta Ensemble


The Circular Beta Ensemble is a family of random unitary matrices whose eigenvalue distribution plays an important role in statistical physics. The spectral measure is a canonical way of describing the unitary matrix that takes into account the full operator, not just its eigenvalues. When the matrix is infinitely large (i.e. an operator on some infinite-dimensional Hilbert space) the spectral measure is supported on a fractal set and has a rough geometry on all scales. This talk will describe the analysis of these fractal properties. Joint work with Raoul Normand.

Dec 15, 2022 10:00 +0800 — 11:00 +0800
Korean Institute for Advanced Study
Tom Alberts
Tom Alberts
Associate Professor of Mathematics
University of Utah