English

Testing importance sampling on a quantum annealer for strong coupling SU(3) gauge theory

High Energy Physics - Lattice 2023-11-14 v1 Quantum Physics

Abstract

SU(Nc)SU(N_c) gauge theories in the strong coupling limit can be described by integer variables representing monomers, dimers and baryon loops. We demonstrate how the D-wave quantum annealer can perform importance sampling on U(Nc)U(N_c) gauge theory in the strong coupling formulation of this theory. In addition to causing a sign problem in importance sampling, baryon loops induce a complex QUBO matrix which cannot be optimized by the D-Wave annealer. Instead we show that simulating the sign-problem free quenched action on the D-Wave is sufficient when combined with a sign reweighting method. As the first test on SU(3)SU(3) gauge theory, we simulate on 2×22 \times 2 lattice and compare the results with its analytic solutions.

Keywords

Cite

@article{arxiv.2311.07209,
  title  = {Testing importance sampling on a quantum annealer for strong coupling SU(3) gauge theory},
  author = {Jangho Kim and Thomas Luu and Wolfgang Unger},
  journal= {arXiv preprint arXiv:2311.07209},
  year   = {2023}
}

Comments

7 pages, 3 figures, Proceedings of the 40th International Symposium on Lattice Field Theory (Lattice 2023), July 31st - August 4th, 2023, Fermi National Accelerator Laboratory

R2 v1 2026-06-28T13:19:07.895Z