Speaker:Berndt Müller (Duke University, USA)
Title: The "Magic Barrier" and other news from Hamiltonian lattice gauge theory
Date: Thursday 26 February, 11:00
Place: Building 3, Conference room
Abstract:
The Hamiltonian formulation of lattice gauge theories allows to exactly compute dynamical processes in real time. Of particular interest are non-perturbative processes, such as thermalization and color-string breaking. Using SU(2) gauge theory, we show that a certain quantity related to quantum "magic" - the quantum aspects that cannot be efficiently implemented on classical computers - exhibits a peak that coincides with the period of most rapid entropy growth. I will also report recent first results for SU(3) gauge theory including the string-like potential between heavy quarks.
(L. Ebner, BM, L. Schmotzer, A. Schäfer, C. Seidl, X. Yao:
https://arxiv.org/html/2510.11681v1
https://arxiv.org/pdf/2411.04550)
