Wave-function initialization in an infinite-chain density-matrix renormalization-group algorithm | |
Sun, LQ; Zhang, J; Qin, SJ![]() | |
刊名 | PHYSICAL REVIEW B
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2002 | |
卷号 | 65期号:13页码:- |
关键词 | Systems |
ISSN号 | 1098-0121 |
英文摘要 | An improved trial-wave-function initialization approach is suggested in an infinite-chain density-matrix renormalization-group (DMRG) method. When we remove the sign freedom of the retained basis in a DMRG algorithm, an optimal trial wave function for a chain can be obtained from previous wave functions for chains with shorter lengths in DMRG. Such an optimal trial wave function will reduce the iteration number of Lanczos-style approaches in calculating the eigen-wave-functions. The possibilities of converging to other eigenenergy levels are also eliminated. A one-dimensional Heisenberg chain is used in this paper to illustrate our practice. |
学科主题 | Physics |
URL标识 | 查看原文 |
WOS记录号 | WOS:000174903900020 |
公开日期 | 2012-08-29 |
内容类型 | 期刊论文 |
源URL | [http://ir.itp.ac.cn/handle/311006/13555] ![]() |
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 | Sun, LQ , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China. |
推荐引用方式 GB/T 7714 | Sun, LQ,Zhang, J,Qin, SJ,et al. Wave-function initialization in an infinite-chain density-matrix renormalization-group algorithm[J]. PHYSICAL REVIEW B,2002,65(13):-. |
APA | Sun, LQ,Zhang, J,Qin, SJ,Lei, Y,&Sun, LQ , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2002).Wave-function initialization in an infinite-chain density-matrix renormalization-group algorithm.PHYSICAL REVIEW B,65(13),-. |
MLA | Sun, LQ,et al."Wave-function initialization in an infinite-chain density-matrix renormalization-group algorithm".PHYSICAL REVIEW B 65.13(2002):-. |
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