The Concept of the Renormalization Group
In the opening chapter we introduce the renormalization group (RG) and associated concepts in a general form in order that the complications of particular applications do not obscure the simplicity of the ideas. There are several forms of the RG but our approach is the one pioneered by Wilson and for which he won the Physics Nobel Prize in 1982 (Wilson 1983). This approach follows from a remarkably simple and intuitive idea and yields a very powerful way to think about quantum field theories (QFT).
KeywordsRenormalization Group Anomalous Dimension Continuum Limit Effective Theory Renormalization Group Equation
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