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, Yan-Chao |
| 刊名 | Physics letters a
 |
| 出版日期 | 2008-09-29 |
| 卷号 | 372期号:40页码:6207-6211 |
| ISSN号 | 0375-9601 |
| DOI | 10.1016/j.physleta.2008.08.021 |
| 通讯作者 | Li, yan-chao(ycli@semi.ac.cn) |
| 英文摘要 | 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. |
| WOS关键词 | STATISTICAL-MECHANICS ; XY-MODEL ; ENTANGLEMENT |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000259918000017 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2427368 |
| 专题 | 半导体研究所 |
| 通讯作者 | Li, Yan-Chao |
| 作者单位 | Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yan-Chao. 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, Yan-Chao.(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, Yan-Chao."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. |
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来源：半导体研究所
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