Characterizing entanglement by momentum jump in the frustrated Heisenberg ring at a quantum phase transition
文献类型：期刊论文
| 作者 | Qian, XF; Shi, T ; Li, Y; Song, Z; Sun, CP; Qian, XF , Nankai Univ, Dept Phys, Tianjin 30071, Peoples R China.
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| 刊名 | PHYSICAL REVIEW A
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| 出版日期 | 2005 |
| 卷号 | 72期号:1页码:- |
| 关键词 | Nearest-neighbor Interaction Linear Chain |
| ISSN号 | 1050-2947 |
| 英文摘要 | We study the pairwise concurrences, a measure of entanglement, of the ground states for the frustrated Heisenberg ring to explore the relation between entanglement and quantum phase transition associated with the momentum jump. The ground-state concurrences between any two sites are obtained analytically and numerically. It shows that the summation of all possible pairwise concurrences is an appropriate candidate to depict the phase transition. We also investigate the role that the momentum takes in the jump of concurrence at the critical points. We find that an abrupt momentum change results in the maximal concurrence difference of two degenerate ground states. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000230887300063 |
| 公开日期 | 2012-08-30 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13790]  |
| 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 | Qian, XF , Nankai Univ, Dept Phys, Tianjin 30071, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Qian, XF,Shi, T,Li, Y,et al. Characterizing entanglement by momentum jump in the frustrated Heisenberg ring at a quantum phase transition[J]. PHYSICAL REVIEW A,2005,72(1):-. |
| APA | Qian, XF,Shi, T,Li, Y,Song, Z,Sun, CP,&Qian, XF , Nankai Univ, Dept Phys, Tianjin 30071, Peoples R China..(2005).Characterizing entanglement by momentum jump in the frustrated Heisenberg ring at a quantum phase transition.PHYSICAL REVIEW A,72(1),-. |
| MLA | Qian, XF,et al."Characterizing entanglement by momentum jump in the frustrated Heisenberg ring at a quantum phase transition".PHYSICAL REVIEW A 72.1(2005):-. |
入库方式： OAI收割
来源：理论物理研究所
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