Weak finite-size dependence of velocity and strong phase dependence of central charge
文献类型：期刊论文
| 作者 | Lin, ZB; Zhang, J; Qin, SJ ; Lei, YA; Lin, ZB , Peking Univ, Dept Phys, Beijing 100871, Peoples R China.
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| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
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| 出版日期 | 2002 |
| 卷号 | 37期号:3页码:367-372 |
| 关键词 | Spin Chain Magnetization Plateau Conformal-invariance Heisenberg Chain Band Insulator Mott Insulator State Field Transitions |
| ISSN号 | 0253-6102 |
| 英文摘要 | We study the finite-size scaling behavior of velocity and central charge for different coupling constants and different phases in (1+1)-dimensional lattice model in very short chains. Using XXZ spin 1/2 chains with 15 or fewer sites, we demonstrate the weak finite-size dependence of spinon velocity for any magnitude of coupling strength J(x) and the strong phase dependence of central charge. This behavior of velocity and central charge in different coupling constants and different phases gives a method to determine phase transitions of (1+1)-dimensional models. This method is simple and efficient by utilizing only the ground state energy of very short finite-size chains. It is also general and powerful for various one-dimensional lattice models and it uncovers even the weakest Berezinski-Kosterlitz-Thouless phase transitions. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000174671700023 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13570]  |
| 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 | Lin, ZB , Peking Univ, Dept Phys, Beijing 100871, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Lin, ZB,Zhang, J,Qin, SJ,et al. Weak finite-size dependence of velocity and strong phase dependence of central charge[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2002,37(3):367-372. |
| APA | Lin, ZB,Zhang, J,Qin, SJ,Lei, YA,&Lin, ZB , Peking Univ, Dept Phys, Beijing 100871, Peoples R China..(2002).Weak finite-size dependence of velocity and strong phase dependence of central charge.COMMUNICATIONS IN THEORETICAL PHYSICS,37(3),367-372. |
| MLA | Lin, ZB,et al."Weak finite-size dependence of velocity and strong phase dependence of central charge".COMMUNICATIONS IN THEORETICAL PHYSICS 37.3(2002):367-372. |
入库方式： OAI收割
来源：理论物理研究所
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