Irrelevance in the (d-2) expansion of nonlinear sigma and Heisenberg models

被引：11

作者：

Brezin, E

Hikami, S

机构：

[1] UNIV TOKYO, DEPT PURE & APPL SCI, MEGURO KU, TOKYO 153, JAPAN

[2] ECOLE NORMALE SUPER, CNRS, PARIS, FRANCE

[3] UNIV PARIS 11, ORSAY, FRANCE

来源：

PHYSICAL REVIEW B | 1997年 / 55卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.55.R10169

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We review the existing results on the scaling dimensions of operators with more than two derivatives in nonlinear sigma and Heisenberg models. We argue that speculations on the relevance of these operators, and correspondingly on the breakdown of the (d-2) expansion for the classical Heisenberg model, or for the one-parameter scaling theory of localization, are based on a dubious mathematical analysis.

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页码：10169 / 10172

页数：4

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