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Seminars

Many-Body Quantum Chaos, Spectral Form Factor, and Ginibre Ensemble

Speaker Dr. Amos CHAN
Affiliation Princeton Center for Theoretical Science, Princeton University
Date July 26, 2022 (Tuesday)
Time 10:30 a.m.
Zoom Link https://hku.zoom.us/j/98317868768?pwd=bktFZFo3MmdOU3I4bDNTaHV3OVlTdz09
Meeting ID: 983 1786 8768
Password: 2859

Abstract

The study of spectral statistics is of importance in theoretical physics due to its universality and utility as a robust diagnosis of quantum chaos. In this talk, I will firstly present an exact univer-sal scaling form of the spectral form factor for a many-body quantum chaotic (MBQC) system, deriving the “bump-ramp-plateau” behaviour. Secondly, I will provide evidence that the non-Hermitian Ginibre ensemble behaviours emerge in MBQC systems with large system sizes, just as Hermitian Gaussian ensemble behaviours emerge in MBQC systems in late time.

Biography

Amos Chan is a postdoctoral fellow at the Princeton Center for Theoretical Science in the Princeton University, and is an incoming Lecturer in Physics in the Lancaster University in the UK. He obtained his DPhil in Theoretical Physics from the University of Oxford, MASt from the University of Cambridge, and BSci from the University College London.

Anyone interested is welcome to attend.