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Cover: 9783642050930 | Introduction to the Functional Renormalization Group | Kopietz (u. a.)
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Introduction to the Functional Renormalization Group
Buch von Peter Kopietz (u. a.)
Sprache: Englisch

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Beschreibung
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 ?elds of physics, ranging from quantum ?eld 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 ?elds 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 dif?cult for beginners to learn this technique. For example, the ?eld-theoretical formulation of the RG idea looks at the ?rst 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.
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 ?elds of physics, ranging from quantum ?eld 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 ?elds 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 dif?cult for beginners to learn this technique. For example, the ?eld-theoretical formulation of the RG idea looks at the ?rst 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.
Zusammenfassung

Through its special emphasis on the functional renormalization group, this is the only monograph at graduate textbook level to deal in depth with the most modern and powerful formulation of the renormalization group approach to quantum many-body systems

Includes supplementary material: [...]

Inhaltsverzeichnis
I Foundations of the renormalization group.- Phase Transitions and the Scaling Hypothesis.- Mean-Field Theory and the Gaussian Approximation.- Wilsonian Renormalization Group.- Critical Behavior of the Ising Model Close to Four Dimensions.- Field-Theoretical Renormalization Group.- II Introduction to the functional renormalization group.- Functional Methods.- Exact FRG Flow Equations.- Vertex Expansion.- Derivative Expansion.- III Functional renormalization group approach to fermions.- Fermionic Functional Renormalization Group.- Normal Fermions: Partial Bosonization in the Forward Scattering Channel.- Superfluid Fermions: Partial Bosonization in the Particle-Particle Channel.
Details
Erscheinungsjahr: 2010
Fachbereich: Mechanik & Akustik
Genre: Physik
Rubrik: Naturwissenschaften & Technik
Medium: Buch
Reihe: Lecture Notes in Physics
Inhalt: xii
380 S.
68 s/w Illustr.
380 p. 68 illus.
ISBN-13: 9783642050930
ISBN-10: 364205093X
Sprache: Englisch
Herstellernummer: 12757947
Ausstattung / Beilage: HC runder Rücken kaschiert
Einband: Gebunden
Autor: Kopietz, Peter
Schütz, Florian
Bartosch, Lorenz
Hersteller: Springer-Verlag GmbH
Springer Berlin Heidelberg
Lecture Notes in Physics
Maße: 241 x 160 x 30 mm
Von/Mit: Peter Kopietz (u. a.)
Erscheinungsdatum: 03.05.2010
Gewicht: 0,824 kg
Artikel-ID: 101462730
Zusammenfassung

Through its special emphasis on the functional renormalization group, this is the only monograph at graduate textbook level to deal in depth with the most modern and powerful formulation of the renormalization group approach to quantum many-body systems

Includes supplementary material: [...]

Inhaltsverzeichnis
I Foundations of the renormalization group.- Phase Transitions and the Scaling Hypothesis.- Mean-Field Theory and the Gaussian Approximation.- Wilsonian Renormalization Group.- Critical Behavior of the Ising Model Close to Four Dimensions.- Field-Theoretical Renormalization Group.- II Introduction to the functional renormalization group.- Functional Methods.- Exact FRG Flow Equations.- Vertex Expansion.- Derivative Expansion.- III Functional renormalization group approach to fermions.- Fermionic Functional Renormalization Group.- Normal Fermions: Partial Bosonization in the Forward Scattering Channel.- Superfluid Fermions: Partial Bosonization in the Particle-Particle Channel.
Details
Erscheinungsjahr: 2010
Fachbereich: Mechanik & Akustik
Genre: Physik
Rubrik: Naturwissenschaften & Technik
Medium: Buch
Reihe: Lecture Notes in Physics
Inhalt: xii
380 S.
68 s/w Illustr.
380 p. 68 illus.
ISBN-13: 9783642050930
ISBN-10: 364205093X
Sprache: Englisch
Herstellernummer: 12757947
Ausstattung / Beilage: HC runder Rücken kaschiert
Einband: Gebunden
Autor: Kopietz, Peter
Schütz, Florian
Bartosch, Lorenz
Hersteller: Springer-Verlag GmbH
Springer Berlin Heidelberg
Lecture Notes in Physics
Maße: 241 x 160 x 30 mm
Von/Mit: Peter Kopietz (u. a.)
Erscheinungsdatum: 03.05.2010
Gewicht: 0,824 kg
Artikel-ID: 101462730
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