Variational study of U(1) and SU(2) lattice gauge theories with Gaussian states in 1+1 dimensions

doi:10.1103/PhysRevD.98.034505

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	Variational study of U(1) and SU(2) lattice gauge theories with Gaussian states in 1+1 dimensions
	Shi, T ; Sala, P ; Cirac, JI ; Demler, E ; Banuls, MC ; Kuhn, S
刊名	PHYSICAL REVIEW D
	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
内容类型	期刊论文
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.