Classical two-site fidelity and quantum phase transitions in the Ising model and the extended Hubbard model
文献类型：期刊论文
| 作者 | Li, YC |
| 刊名 | physics letters a
 |
| 出版日期 | 2008 |
| 卷号 | 372期号:40页码:6207-6211 |
| 关键词 | STATISTICAL-MECHANICS XY-MODEL ENTANGLEMENT |
| ISSN号 | 0375-9601 |
| 通讯作者 | li, yc, chinese acad sci, inst semicond, state key lab superlattices & microstruct, pob 912, beijing 100083, peoples r china. 电子邮箱地址: ycli@semi.ac.cn |
| 中文摘要 | in this letter, the classical two-site-ground-state fidelity (ctgf) is exploited to identify quantum phase transitions (qpts) for the transverse field ising model (tfim) and the one-dimensional extended hubbard model (ehm). our results show that the ctgf exhibits an abrupt change around the regions of criticality and can be used to identify qpts in spin and fermionic systems. the method is especially convenient when it is connected with the density-matrix renormalization group (dmrg) algorithm. (c) 2008 elsevier b.v. all rights reserved. |
| 学科主题 | 半导体物理 |
| 收录类别 | SCI |
| 资助信息 | national natural science foundation of china 60521001 60776061this work was supported in part by the national natural science foundation of china (grants no. 60521001 and no. 60776061). |
| 语种 | 英语 |
| 公开日期 | 2010-03-08 |
| 源URL | [http://ir.semi.ac.cn/handle/172111/6422]  |
| 专题 | 半导体研究所_中国科学院半导体研究所（2009年前） |
| 推荐引用方式 GB/T 7714 | Li, YC. Classical two-site fidelity and quantum phase transitions in the Ising model and the extended Hubbard model[J]. physics letters a,2008,372(40):6207-6211. |
| APA | Li, YC.(2008).Classical two-site fidelity and quantum phase transitions in the Ising model and the extended Hubbard model.physics letters a,372(40),6207-6211. |
| MLA | Li, YC."Classical two-site fidelity and quantum phase transitions in the Ising model and the extended Hubbard model".physics letters a 372.40(2008):6207-6211. |
入库方式： OAI收割
来源：半导体研究所
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