Workshop on the sign problem in QCD and beyond

Prospects for Quantum Simulations of the Strong Coupling Expansion

21 Jan 2025, 13:30

45m

Lecture Hall 099 (ExWi Building) (University of Bern)

talk Tuesday afternoon

Speaker

Wolfgang Unger

Description

We present Monte Carlo simulations for the phase diagram based on the strong coupling expansion including $\mathcal{O}({\beta }^2)$ and discuss the severity of the sign problem as a function of the inverse gauge coupling $\beta$, which limits the range of validity of the strong coupling expansion. We also present the formulation of the strong coupling expansion that is suitable for quantum simulations, where the sign does not pose a problem, and explain the quantum computational requirements for such simulations.

Presentation materials

Sign2025_Unger.pdf