Ground-state phase diagram of a spin-1/2 frustrated three-leg antiferromagnetic Heisenberg ladder
文献类型：期刊论文
| 作者 | Wang, XQ; Zhu, NS; Chen, CF; Wang, XQ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China. |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2002 |
| 卷号 | 66期号:17页码:- |
| 关键词 | Quantum Renormalization-groups Low-energy Properties 2-leg Ladders Superconductivity Chains Behavior Models Gap |
| ISSN号 | 1098-0121 |
| 英文摘要 | Using the density matrix renormalization group method we have studied the ground-state phase diagram of a spin-1/2 frustrated three-leg antiferromagnetic Heisenberg ladder, and identified two phases corresponding to the spin-3/2 chain and the standard spin ladder. Varying the diagonal coupling J(x) leads to a quantum phase transition from one ground state to the other, but does not alter the gapless nature of the excitation spectra. On the phase boundary, the degenerate ground states form a chiral spin liquid with a central charge c=2. The critical value of J(x) is insensitive to the number of legs in the ladder, suggesting that a quantum phase transition may occur at J(x)=0.6 for the isotropic spin-1/2 antiferromagnetic Heisenberg model on the square lattice. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000179611700006 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13406]  |
| 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 | Wang, XQ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wang, XQ,Zhu, NS,Chen, CF,et al. Ground-state phase diagram of a spin-1/2 frustrated three-leg antiferromagnetic Heisenberg ladder[J]. PHYSICAL REVIEW B,2002,66(17):-. |
| APA | Wang, XQ,Zhu, NS,Chen, CF,&Wang, XQ , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China..(2002).Ground-state phase diagram of a spin-1/2 frustrated three-leg antiferromagnetic Heisenberg ladder.PHYSICAL REVIEW B,66(17),-. |
| MLA | Wang, XQ,et al."Ground-state phase diagram of a spin-1/2 frustrated three-leg antiferromagnetic Heisenberg ladder".PHYSICAL REVIEW B 66.17(2002):-. |
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来源：理论物理研究所
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