Quantum simulation of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>QC</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msub><mml:mi mathvariant="normal">D</mml:mi></mml:mrow></mml:math> on
We study the Hamiltonian formulation of SU(2) Yang-Mills theory with staggered fermions in a (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mn>2</a:mn><a:mo>+</a:mo><a:mn>1</a:mn></a:mrow></a:math>)-dimensional small lattice system. We construct a gauge-invariant and finite-dimensional Hilbert space for the theory by applying the loop-string-hadron formulation and specifically map the model to a spin system. We classically emulate digital quantum simulation and observe the real-time evolution of the single-site entanglement entropy, the fermion entanglement entropy, and the fermion pair production.
Authors
- Kouji Kashiwa (ORCID: https://orcid.org/0000-0002-5255-799X)
- Xu-Guang Huang (ORCID: https://orcid.org/0000-0001-6293-4843)
- Hidefumi Matsuda (ORCID: https://orcid.org/0000-0001-7546-9151)
- Zhi Yang (ORCID: https://orcid.org/0009-0008-8828-5333)
Institutions
- Fukuoka Institute of Technology (JP)
- Fudan University (CN)
- Zhejiang University (CN)
Publication Details
- Journal
- Physical review. D/Physical review. D.
- Published
- 2025-08-27
- DOI
- https://doi.org/10.1103/pj6x-zymq
- Citations
- 1
- Primary Topic
- Quantum many-body systems
- Type
- article
- Field-Weighted Citation Impact
- 1.25
Funders
- Natural Science Foundation of Shanghai
- National Natural Science Foundation of China
- Japan Society for the Promotion of Science
- National Key Research and Development Program of China