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题名: Accurate determination of tensor network state of quantum lattice models in two dimensions
作者: Jiang, H. C. ;  Weng, Z. Y. ;  Xiang, T.
刊名: PHYSICAL REVIEW LETTERS
出版日期: 2008
卷号: 101, 期号:9, 页码:-
关键词: DENSITY-MATRIX RENORMALIZATION ;  ANTIFERROMAGNET ;  SYSTEMS
学科分类: Physics
通讯作者: Jiang, HC , Tsinghua Univ, Ctr Adv Study, Beijing 100084, Peoples R China
部门归属: [Jiang, HC; Weng, ZY] Tsinghua Univ, Ctr Adv Study, Beijing 100084, Peoples R China; [Xiang, T] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China; [Xiang, T] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要: We have proposed a novel numerical method to calculate accurately physical quantities of the ground state using the tensor network wave function in two dimensions. The tensor network wave function is determined by an iterative projection approach which uses the Trotter-Suzuki decomposition formula of quantum operators and the singular value decomposition of matrix. The norm of the wave function and the expectation value of a physical observable are evaluated by a coarse-grain tensor renormalization group approach. Our method allows a tensor network wave function with a high bond degree of freedom (such as D = 8) to be handled accurately and efficiently in the thermodynamic limit. For the Heisenberg model on a honeycomb lattice, our results for the ground state energy and the staggered magnetization agree well with those obtained by the quantum Monte Carlo and other approaches.
资助者: the NSF-China; the National Program for Basic Research of MOST, China
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000259195800009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5477
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Jiang, H. C.,Weng, Z. Y.,Xiang, T.. Accurate determination of tensor network state of quantum lattice models in two dimensions[J]. PHYSICAL REVIEW LETTERS,2008,101(9):-.
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