Edge states in open antiferromagnetic quantum spin chains | |
Ng, TK; Qin, SJ; Su, ZB | |
1996 | |
会议日期 | DEC 02-05, 1995 |
会议地点 | SEOUL, SOUTH KOREA |
关键词 | BOND GROUND-STATES RENORMALIZATION-GROUPS DYNAMICS |
卷号 | 29 |
页码 | S102-S106 |
英文摘要 | The structure of edge (end) states in general open antiferromagnetic quantum spin chains is discussed in this paper within the frameworks of Non-linear-sigma-model (NL sigma M) for open antiferromagnetic quantum spin chains. We argue that edge states with fractionalized quantum number S-edge exist in all spin chains with S greater than or equal to 1, with S-edge=S/2 for integer spin chains, and S-edge=(S-1/2)/2 for half-integer spinchains. Numerical results of density-matrix renormalization group computation for open spin chains with S=1/2, 1, 3/2, 2 are presented which verify our edge-state picture. |
会议录 | JOURNAL OF THE KOREAN PHYSICAL SOCIETY
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会议录出版者 | KOREAN PHYSICAL SOC |
会议录出版地 | SEOUL |
语种 | 英语 |
ISSN号 | 0374-4884 |
WOS研究方向 | Physics |
内容类型 | 会议论文 |
源URL | [http://ir.itp.ac.cn/handle/311006/23798] ![]() |
专题 | SCI会议论文 |
作者单位 | INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA |
推荐引用方式 GB/T 7714 | Ng, TK,Qin, SJ,Su, ZB. Edge states in open antiferromagnetic quantum spin chains[C]. 见:. SEOUL, SOUTH KOREA. DEC 02-05, 1995. |
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