Wave-function initialization in an infinite-chain density-matrix renormalization-group algorithm
文献类型：期刊论文
| 作者 | Sun, LQ; Zhang, J; Qin, SJ ; Lei, Y; Sun, LQ , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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| 刊名 | PHYSICAL REVIEW B
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| 出版日期 | 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 |
| 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):-. |
入库方式： OAI收割
来源：理论物理研究所
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