Research

Colloquia — Fall 2023

Friday, September 22, 2023

Title: Statistics of local level spacings in single- and many-body quantum chaos
Speaker: Roman Riser, University of Haifa, Israel
Time: 3:00pm–4:00pm
Place: CMC 130
Sponsor: S. Lee

Abstract

In the introduction we review spacing distributions with emphasis on random matrix ensembles. Then we define the meaning of local spacings and discuss its statistics and distribution. They can be interpreted in terms of the inspection paradox in probability theory. We will identify universal sequences of local spacings and demonstrate how they can reveal symmetries in physical systems as well as if a quantum system has integrable or chaotic underlying classical dynamics.