This title appears in the Scientific Report :
2023
Please use the identifier:
http://dx.doi.org/10.34734/FZJ-2023-05088 in citations.
Please use the identifier: http://dx.doi.org/10.1103/PhysRevD.108.074501 in citations.
U(N) gauge theory in the strong coupling limit on a quantum annealer
U(N) gauge theory in the strong coupling limit on a quantum annealer
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 temperat...
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Personal Name(s): | Kim, Jangho (Corresponding author) |
---|---|
Luu, Thomas / Unger, Wolfgang | |
Contributing Institute: |
Theorie der Starken Wechselwirkung; IAS-4 |
Published in: | Physical review / D, 108 (2023) 7, S. 074501 |
Imprint: |
Ridge, NY
American Physical Society
2023
|
DOI: |
10.34734/FZJ-2023-05088 |
DOI: |
10.1103/PhysRevD.108.074501 |
Document Type: |
Journal Article |
Research Program: |
Symmetrie-verletzende hadronische Wechselwirkungen in der Gitter-QCD (A10*) Domain-Specific Simulation & Data Life Cycle Labs (SDLs) and Research Groups |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1103/PhysRevD.108.074501 in citations.
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. |