Köln 2025 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
HK: Fachverband Physik der Hadronen und Kerne
HK 46: Computing II
HK 46.1: Talk
Thursday, March 13, 2025, 14:00–14:15, SR 0.01 Erw. Physik
Variational Quantum Eigensolver for (2+1)-Dimensional QED at Finite Density — •Emil Rosanowski1, Lena Funcke1, Karl Jansen2, Paulo Itaborai2, Arianna Crippa2, and Stefan Kühn2 — 1Universität Bonn — 2DESY Zeuthen
In this talk, we present an implementation of multiple fermion flavors in both the Kogut-Susskind and Wilson formulations for quantum simulations of (2+1)-dimensional Quantum Electrodynamics (QED). Our first results show a particular type of level crossing with one flavor of fermions at zero density, as expected from analytical Chern number calculations. Moving forward, we explore the multi-flavor system at finite density by including a chemical potential. Finally, we present results from inference runs executed on real quantum hardware.
Keywords: QED; Quantum Computing; VQE; Wilson Fermions