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AN, Y; SONG, YX; AN, Y , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.
EFFECTIVE MEAN-FIELD THEORY-BASED ON CUMULANT EXPANSION - A NEW APPROACH METHOD ORDER BY ORDER
Source PublicationCOMMUNICATIONS IN THEORETICAL PHYSICS
KeywordLattice
AbstractWe 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.
1995
ISSN0253-6102
Volume24Issue:2Pages:233-238
Subject AreaPhysics
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/11708
Collection理论物理所科研产出_SCI论文
Corresponding AuthorAN, Y , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.
Recommended Citation
GB/T 7714
AN, Y,SONG, YX,AN, Y , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.. 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 AN, Y,SONG, YX,&AN, Y , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA..(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 AN, Y,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.
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