Optimized contraction scheme for tensor-network states
文献类型：期刊论文
| 作者 | Liu, ZY; Xie, ZY; Liao, HJ; Huang, RZ; Xie, HD; Chen, J; Xiang, T ; Xiang, T (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.; Xiang, T (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China.; Xiang, T (reprint author), Collaborat Innovat Ctr Quantum Matter, Beijing 100190, Peoples R China.
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| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2017 |
| 卷号 | 96期号:4页码:45128 |
| DOI | http://dx.doi.org/10.1103/PhysRevB.96.045128 |
| 英文摘要 | In the tensor-network framework, the expectation values of two-dimensional quantum states are evaluated by contracting a double-layer tensor network constructed from initial and final tensor-network states. The computational cost of carrying out this contraction is generally very high, which limits the largest bond dimension of tensor-network states that can be accurately studied to a relatively small value. We propose an optimized contraction scheme to solve this problem by mapping the double-layer tensor network onto an intersected single-layer tensor network. This reduces greatly the bond dimensions of local tensors to be contracted and improves dramatically the efficiency and accuracy of the evaluation of expectation values of tensor-network states. It almost doubles the largest bond dimension of tensor-network states whose physical properties can be efficiently and reliably calculated, and it extends significantly the application scope of tensor-network methods. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/22009]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Xiang, T (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.; Xiang, T (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China.; Xiang, T (reprint author), Collaborat Innovat Ctr Quantum Matter, Beijing 100190, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Liu, ZY,Xie, ZY,Liao, HJ,et al. Optimized contraction scheme for tensor-network states[J]. PHYSICAL REVIEW B,2017,96(4):45128. |
| APA | Liu, ZY.,Xie, ZY.,Liao, HJ.,Huang, RZ.,Xie, HD.,...&Xiang, T .(2017).Optimized contraction scheme for tensor-network states.PHYSICAL REVIEW B,96(4),45128. |
| MLA | Liu, ZY,et al."Optimized contraction scheme for tensor-network states".PHYSICAL REVIEW B 96.4(2017):45128. |
入库方式： OAI收割
来源：理论物理研究所
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