The renormalization group: Critical phenomena and the Kondo problem

作者：Kenneth G. Wilson · 发表于：Reviews of Modern Physics · 年份：1975 · DOI：10.1103/revmodphys.47.773 · 被引用次数：4558 · 研究领域：Theoretical and Computational Physics、Quantum many-body systems、Opinion Dynamics and Social Influence

This review covers several topics involving renormalization group ideas. The solution of the $s$-wave Kondo Hamiltonian, describing a single magnetic impurity in a nonmagnetic metal, is explained in detail. See Secs. VII-IX. "Block spin" methods, applied to the two dimensional Ising model, are explained in Sec. VI. The first three sections give a relatively short review of basic renormalization group ideas, mainly in the context of critical phenomena. The relationship of the modern renormalization group to the older problems of divergences in statistical mechanics and field theory and field theoretic renormalization is discussed in Sec. IV. In Sec. V the special case of "marginal variables" is discussed in detail, along with the relationship of the modern renormalization group to its original formulation by Gell-Mann and Low and others.