NUMERICAL-SOLUTION OF THE SPIN-1 HEISENBERG ANTIFERROMAGNETIC CHAINS BY USING A PROJECTOR METHOD
文献类型：期刊论文
| 作者 | SUN, G |
| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
 |
| 出版日期 | 1992 |
| 卷号 | 18期号:2页码:137 |
| 关键词 | MONTE-CARLO CALCULATION QUANTUM ENERGY-GAP HALDANE CONJECTURE LINEAR-CHAIN FIELD NI(C2H8N2)2NO2(CLO4) MAGNETIZATION |
| ISSN号 | 0253-6102 |
| 通讯作者 | SUN, G (reprint author), CHINESE ACAD SCI,INST PHYS,POB 603,BEIJING 100080,PEOPLES R CHINA. |
| 中文摘要 | An efficient projector Monte Carlo method has been used to calculate the energies of the ground state and the first excited state, and hence the gap between them, of the spin-I Heisenberg antiferromagnetic chains with linear sizes up to N = 40. We have computed them on chains up to N = 40. We have found that the size-dependence of the ground state energy per site has the form [epsilon0(N) - epsilon0] approximately 1/N5/2, which implies that there is a gap between the ground state and the first excited state. The value of the ground state energy per site as N --> infinity is epsilon0 = -1.3996. The direct extrapolation of DELTAE(N) also shows that a gap of DELTAE = 0.36 exists as N --> infinity. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/49599]  |
| 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 | SUN, G. NUMERICAL-SOLUTION OF THE SPIN-1 HEISENBERG ANTIFERROMAGNETIC CHAINS BY USING A PROJECTOR METHOD[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,1992,18(2):137. |
| APA | SUN, G.(1992).NUMERICAL-SOLUTION OF THE SPIN-1 HEISENBERG ANTIFERROMAGNETIC CHAINS BY USING A PROJECTOR METHOD.COMMUNICATIONS IN THEORETICAL PHYSICS,18(2),137. |
| MLA | SUN, G."NUMERICAL-SOLUTION OF THE SPIN-1 HEISENBERG ANTIFERROMAGNETIC CHAINS BY USING A PROJECTOR METHOD".COMMUNICATIONS IN THEORETICAL PHYSICS 18.2(1992):137. |
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。