| Density matrix loschmidt echo and quantum phase transitions | |
| Li, Yan-Chao; Li, Shu-Shen | |
| 刊名 | Physical review a
 |
| 2007-09-01 | |
| 卷号 | 76期号:3页码:5 |
| ISSN号 | 1050-2947 |
| DOI | 10.1103/physreva.76.032117 |
| 通讯作者 | Li, yan-chao() |
| 英文摘要 | We introduce the concept of the loschmidt echo (le) to the space of the reduced density matrix of spin and fermionic systems to study the density matrix les (dmles) of the one-dimensional extended hubbard model and the transverse field ising model. our results show that the dmles are remarkably influenced by the criticality of the system, and the method is a convenient way to study quantum phase transitions. |
| WOS关键词 | STATISTICAL-MECHANICS ; XY-MODEL ; ENTANGLEMENT |
| WOS研究方向 | Optics ; Physics |
| WOS类目 | Optics ; Physics, Atomic, Molecular & Chemical |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000249786000042 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2427098 |
| 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,Li, Shu-Shen. Density matrix loschmidt echo and quantum phase transitions[J]. Physical review a,2007,76(3):5. |
| APA | Li, Yan-Chao,&Li, Shu-Shen.(2007).Density matrix loschmidt echo and quantum phase transitions.Physical review a,76(3),5. |
| MLA | Li, Yan-Chao,et al."Density matrix loschmidt echo and quantum phase transitions".Physical review a 76.3(2007):5. |
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