Journal Article

FZJ-2023-05088

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png U(N) gauge theory in the strong coupling limit on a quantum annealer

Kim, J. (Corresponding author)FZJ* ; Luu, T.FZJ* ; Unger, W.

2023
American Physical Society Ridge, NY

This record in other databases:

Please use a persistent id in citations: doi:10.1103/PhysRevD.108.074501  doi:10.34734/FZJ-2023-05088

Abstract: Lattice QCD in the strong coupling regime can be formulated in dual variables, which are integer-valued. It can be efficiently simulated for modest finite temperatures and finite densities via the worm algorithm, circumventing the finite density sign problem in this regime. However, the low temperature regime is more expensive to address. As the partition function is solely expressed in terms of integers, it can be cast as a combinatorial optimization problem that can be solved on a quantum annealer. We will first explain the setup of the system we want to study and then present its reformulation suitable for a quantum annealer, and in particular the D wave. As a proof of concept, we present first results obtained on D wave for gauge group U(1) and U(3), and outline the next steps towards gauge groups SU(3). We find that in addition, histogram reweighting greatly improves the accuracy of our observables when compared to analytic results.

---

Contributing Institute(s):

1. Theorie der Starken Wechselwirkung (IAS-4)

Research Program(s):

1. 5111 - Domain-Specific Simulation & Data Life Cycle Labs (SDLs) and Research Groups (POF4-511) (POF4-511)
2. DFG project 443914323 - Symmetrie-verletzende hadronische Wechselwirkungen in der Gitter-QCD (A10*) (443914323) (443914323)

Appears in the scientific report 2023

---

Database coverage:
; ; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOAP3 sponsored Journal ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---