Topological term in the non-linear sigma model of the SO(5) spin chains
文献类型：期刊论文
| 作者 | Xiang, T
|
| 刊名 | NUCLEAR PHYSICS B
 |
| 出版日期 | 2011 |
| 卷号 | 846期号:3页码:607-615 |
| 关键词 | BOND GROUND-STATES VALENCE-BOND QUANTUM ANTIFERROMAGNETS SYSTEMS |
| ISSN号 | 0550-3213 |
| 通讯作者 | Zhang, GM (reprint author), Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China. |
| 英文摘要 | We show that there is a topological (Berry phase) term in the non-linear sigma model description of the SO(5) spin chain. It distinguishes the linear and projective representations of the SO(5) symmetry group, in exact analogy to the well-known theta-term of the SO(3) spin chain. The presence of the topological term is due to the fact that pi(2)(SO(5)/SO(3) x SO(2)) = Z. We discuss the implication of our results on the spectra of the SO(5) spin chain, and connect it with a recent solvable SO(5) spin model which exhibits valence bond solid ground state and edge degeneracy. (c) 2011 Elsevier B.V. All rights reserved. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | DOE [DE-AC02-05CH11231]; NSF-China; MOST, China |
| 原文出处 | http://dx.doi.org/10.1016/j.nuclphysb.2011.01.010 |
| 语种 | 英语 |
| WOS记录号 | WOS:000288412100007 |
| 公开日期 | 2013-05-17 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/14350]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Xiang, T. Topological term in the non-linear sigma model of the SO(5) spin chains[J]. NUCLEAR PHYSICS B,2011,846(3):607-615. |
| APA | Xiang, T.(2011).Topological term in the non-linear sigma model of the SO(5) spin chains.NUCLEAR PHYSICS B,846(3),607-615. |
| MLA | Xiang, T."Topological term in the non-linear sigma model of the SO(5) spin chains".NUCLEAR PHYSICS B 846.3(2011):607-615. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。