Variational study of U(1) and SU(2) lattice gauge theories with Gaussian states in 1+1 dimensions
文献类型：期刊论文
| 作者 | Shi, T ; Sala, P; Cirac, JI; Demler, E; Banuls, MC; Kuhn, S
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| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2018 |
| 卷号 | 98期号:3页码:34505 |
| 关键词 | MASSIVE SCHWINGER MODEL ENTANGLED PAIR STATES STRONG-COUPLING CALCULATIONS MATRIX PRODUCT STATES YANG-MILLS THEORY HAMILTONIAN-FORMULATION SPIN SYSTEMS T-EXPANSION REPRESENTATION CONFINEMENT |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.98.034505 |
| 英文摘要 | We introduce a method to investigate the static and dynamic properties of both Abelian and non-Abelian lattice gauge models in 1 + 1 dimensions. Specifically, we identify a set of transformations that disentangle different degrees of freedom, and apply a simple Gaussian variational ansatz to the resulting Hamiltonian. To demonstrate the suitability of the method, we analyze both static and dynamic aspects of string breaking for the U(1) and SU(2) gauge models. We benchmark our results against tensor network simulations and observe excellent agreement, although the number of variational parameters in the Gaussian ansatz is much smaller. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/22835]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.[Sala, P.] Tech Univ Munich, Dept Phys, T42,James Franck Str 1, D-85748 Garching, Germany 2.[Shi, T.] Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China 3.[Kuhn, S.] Perimeter Inst Theoret Phys, 31 Caroline St North, Waterloo, ON N2L 2Y5, Canada 4.[Banuls, M. C. 5.Cirac, J. I.] Max Planck Inst Quantum Opt, Hans Kopfermann Str 1, D-85748 Garching, Germany 6.[Demler, E.] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA |
| 推荐引用方式 GB/T 7714 | Shi, T,Sala, P,Cirac, JI,et al. Variational study of U(1) and SU(2) lattice gauge theories with Gaussian states in 1+1 dimensions[J]. PHYSICAL REVIEW D,2018,98(3):34505. |
| APA | Shi, T,Sala, P,Cirac, JI,Demler, E,Banuls, MC,&Kuhn, S.(2018).Variational study of U(1) and SU(2) lattice gauge theories with Gaussian states in 1+1 dimensions.PHYSICAL REVIEW D,98(3),34505. |
| MLA | Shi, T,et al."Variational study of U(1) and SU(2) lattice gauge theories with Gaussian states in 1+1 dimensions".PHYSICAL REVIEW D 98.3(2018):34505. |
入库方式： OAI收割
来源：理论物理研究所
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