Path selection rule in matrix product systems
文献类型：期刊论文
| 作者 | Z. Y. Sun ; K. L. Yao ; B. Luo ; J. Liu ; W. Yao ; Z. L. Liu |
| 刊名 | Physical Review B
 |
| 出版日期 | 2009 |
| 卷号 | 80期号:9 |
| 关键词 | Hilbert spaces magnetic transitions matrix algebra quantum entanglement spin systems quantum entanglement states chains |
| ISSN号 | 1098-0121 |
| 中文摘要 | A matrix product system chooses a special path in the phase diagram to undergo a quantum phase transition (QPT) and shows different behaviors compared with a traditional QPT, such as the symmetry behavior of some physical observables described in this paper. An equation is established, which (i) helps one to understand the special behaviors of a matrix product state (MPS)-QPTs, and (ii) can be used to detect the QPT point of a MPS, much simpler than usual procedures of calculating the transfer matrix or density matrix of the system. The equation acts as a selection rule for the path of the MPS-QPT and is believed to be the essence of distinguishing a MPS-QPT from a traditional QPT. Furthermore, the discontinuity of the derivative of an observable is found to be connected directly to the turning point in the path of the MPS, but not the phase boundary point in the phase diagram, though the two are in accordance with each other in many cases. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32319]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Z. Y. Sun,K. L. Yao,B. Luo,et al. Path selection rule in matrix product systems[J]. Physical Review B,2009,80(9). |
| APA | Z. Y. Sun,K. L. Yao,B. Luo,J. Liu,W. Yao,&Z. L. Liu.(2009).Path selection rule in matrix product systems.Physical Review B,80(9). |
| MLA | Z. Y. Sun,et al."Path selection rule in matrix product systems".Physical Review B 80.9(2009). |
入库方式： OAI收割
来源：金属研究所
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