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题名: Universality and phi(4) theory of finite-size effects above the upper critical dimension
作者: 陈晓松 ;  Dohm, V
刊名: PHYSICAL REVIEW E
出版日期: 2001
卷号: 63, 期号:1, 页码:-
关键词: 5-DIMENSIONAL ISING-MODEL ;  RENORMALIZATION-GROUP ;  CRITICAL-BEHAVIOR ;  CROSSOVER ;  TRANSITIONS ;  FIELD
学科分类: Physics
通讯作者: Chen, XS , Rhein Westfal TH Aachen, Inst Theoret Phys, D-52056 Aachen, Germany.
部门归属: Rhein Westfal TH Aachen, Inst Theoret Phys, D-52056 Aachen, Germany; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We analyze finite-size effects in a L-d geometry above the upper critical dimension d=4 within the O(n) symmetric phi (4) theory on the basis of exact results for n-->infinity and one-loop results for n=1. We show that finite-size effects of the phi (4) continuum theory with a smooth (rather than sharp) cutoff belong to the same universality class as those of the phi (4) lattice theory. Our analysis predicts both universal and nonuniversal Features of finite-size effects. and resolves long-standing discrepancies in earlier analyses of Monte Carlo (MC) data for the d = 5 Ising model. Our estimates of two fundamental length scales xi (o) and I-o are confirmed by very recent MC data.
收录类别: SCI
WOS记录号: WOS:000166405100018
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12844
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Chen, XS,Dohm, V. Universality and phi(4) theory of finite-size effects above the upper critical dimension[J]. PHYSICAL REVIEW E,2001,63(1):-.
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