Quantum phase transitions in a spin ladder with long-range couplings
文献类型：期刊论文
| 作者 | Cao, JP ; Xiong, G ; Xie, XC ; Wang, XR ; Wang, YP |
| 刊名 | NUCLEAR PHYSICS B
 |
| 出版日期 | 2005 |
| 卷号 | 731期号:3页码:352 |
| 关键词 | HEISENBERG ANTIFERROMAGNETIC CHAIN FERROMAGNETIC GROUND-STATE ARBITRARY SPINS SYSTEMS EXCHANGE |
| ISSN号 | 0550-3213 |
| 通讯作者 | Cao, JP (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China. |
| 中文摘要 | An integrable model with rich ground state phases is difficult to realize. In this paper, an integrable spin ladder with pure long-range Heisenberg couplings is proposed and solved via the asymptotic Bethe ansatz method. Numerical solutions of the Bethe ansatz equation show that with the variation of the coupling range parameter alpha, quantum phase transitions exist for both ferromagnetic (J = -1) and antiferromagnetic (J = 1) intrachain couplings. For J = -1, depending on alpha, the ground state may be ferromagnetic, Takhtajan-Babujian spin liquid, or a frustrated spin liquid. For J = 1, a quantum phase transition from the Heisenberg spin liquid to an exotic spin liquid occurs at a critical alpha. The phase boundaries are determined numerically. (c) 2005 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51717]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Cao, JP,Xiong, G,Xie, XC,et al. Quantum phase transitions in a spin ladder with long-range couplings[J]. NUCLEAR PHYSICS B,2005,731(3):352. |
| APA | Cao, JP,Xiong, G,Xie, XC,Wang, XR,&Wang, YP.(2005).Quantum phase transitions in a spin ladder with long-range couplings.NUCLEAR PHYSICS B,731(3),352. |
| MLA | Cao, JP,et al."Quantum phase transitions in a spin ladder with long-range couplings".NUCLEAR PHYSICS B 731.3(2005):352. |
入库方式： OAI收割
来源：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。