NATURE OF THE GAUSSIAN APPROXIMATIONS IN PHASE-ORDERING KINETICS

被引:8
作者
DESIENA, S
ZANNETTI, M
机构
[1] Dipartimento di Fisica, Università di Salerno, 84081 Baronissi, Salerno
来源
PHYSICAL REVIEW E | 1994年 / 50卷 / 04期
关键词
D O I
10.1103/PhysRevE.50.2621
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
The structure of the Gaussian auxiliary field approximation in the theory of phase-ordering kinetics is analyzed with the aim of placing the method within the context of a systematic theory. While we are unable to do this for systems with a scalar order parameter, where the approximation remains uncontrolled, a systematic development about the Gaussian approximation can be outlined for systems with a vector order parameter in terms of a suitably defined 1/N expansion.
引用
收藏
页码:2621 / 2629
页数:9
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