Pub. Date:
Springer Berlin Heidelberg
Introduction to the Functional Renormalization Group / Edition 1

Introduction to the Functional Renormalization Group / Edition 1


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The renormalization group (RG) has nowadays achieved the status of a meta-theory, which is a theory about theories. The theory of the RG consists of a set of concepts and methods which can be used to understand phenomena in many different fields of physics, ranging from quantum field theory over classical statistical mechanics to nonequilibrium phenomena. RG methods are particularly useful to understand phenomena where—uctuations involving many different length or time scales lead to the emergence of new collective behavior in complex many-body systems. In view of the diversity of fields where RG methods have been successfully applied, it is not surprising that a variety of apparently different implementations of the RG idea have been proposed. Unfortunately, this makes it somewhat difficult for beginners to learn this technique. For example, the field-theoretical formulation of the RG idea looks at the first sight rather different from the RG approach pioneered by Wilson, the latter being based on the concept of the effective action which is ite- tively calculated by successive elimination of the high-energy degrees of freedom. Moreover, the Wilsonian RG idea has been implemented in many different ways, depending on the particular problem at hand, and there seems to be no canonical way of setting up the RG procedure for a given problem.

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“The authors of this textbook provide a comprehensive introduction to the method, including its foundation in the renormalization group … . an excellent introduction to the method, recommendable to anyone who is looking for a powerful method to deal with non-perturbative (and perturbative) problems in the continuum. The introduction is lucid and quite accessible. The book is definitely recommended for anyone interested in such an approach. … it would serve well as a basis for an introductory course for advanced graduate and Ph.D. students.” (Axel Maas, Mathematical Reviews, Issue 2011 h)

Product Details

ISBN-13: 9783642050930
Publisher: Springer Berlin Heidelberg
Publication date: 05/04/2010
Series: Lecture Notes in Physics , #798
Edition description: 2010
Pages: 380
Product dimensions: 6.20(w) x 9.30(h) x 1.30(d)

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