EFFECTIVE MEAN-FIELD THEORY-BASED ON CUMULANT EXPANSION - A NEW APPROACH METHOD ORDER BY ORDER
文献类型：期刊论文
| 作者 | SONG, YX; AN, Y , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.; AN, Y |
| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
 |
| 出版日期 | 1995 |
| 卷号 | 24期号:2页码:233-238 |
| 关键词 | Lattice |
| ISSN号 | 0253-6102 |
| 英文摘要 | We propose in this paper an effective mean-field theory, which makes the calculation for any observable being performed in a general form of cumulant expansion. The effective mean-field equation with reasonable physical annotation, which is obtained from the lower bound extreme value condition of free energy, can be applied to general statistic mechanics and Lagrangian quantum theory. By applying it to lattices, our theory, for various models containing nonuniform system and nonequilibrium phenomenon, can give a realistic scheme to study the nonperturbative effect order by order. As a testing example to two-dimensional sing model, we obtain a result approaching the Onsager solution order by order. |
| 学科主题 | Physics |
| 公开日期 | 2012-08-28 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/11708]  |
| 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 | AN, Y , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA. |
| 推荐引用方式 GB/T 7714 | SONG, YX,AN, Y , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.,AN, Y. EFFECTIVE MEAN-FIELD THEORY-BASED ON CUMULANT EXPANSION - A NEW APPROACH METHOD ORDER BY ORDER[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,1995,24(2):233-238. |
| APA | SONG, YX,AN, Y , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.,&AN, Y.(1995).EFFECTIVE MEAN-FIELD THEORY-BASED ON CUMULANT EXPANSION - A NEW APPROACH METHOD ORDER BY ORDER.COMMUNICATIONS IN THEORETICAL PHYSICS,24(2),233-238. |
| MLA | SONG, YX,et al."EFFECTIVE MEAN-FIELD THEORY-BASED ON CUMULANT EXPANSION - A NEW APPROACH METHOD ORDER BY ORDER".COMMUNICATIONS IN THEORETICAL PHYSICS 24.2(1995):233-238. |
入库方式： OAI收割
来源：理论物理研究所
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