Renormalization GroupScaling and self-similarity ideas and methods in theoretical physics have, in the last twenty-five years, coalesced into renormalization-group methods. This book analyzes, from a single perspective, some of the most important applications: the critical-point theory in classical statistical mechanics, the scalar quantum field theories in two and three space-time dimensions, and Tomonaga's theory of the ground state of one-dimensional Fermi systems. |
Contents
Problems Equivalent to the Analysis of Suitable | 5 |
Fermi Sphere and Bose | 12 |
Effective Potentials and Schwinger Functions | 19 |
Relevant and Irrelevant | 27 |
Upper Critical Dimension | 34 |
The Fermi Liquid and the Luttinger Model | 66 |
Reformulation | 75 |
Effective Potentials | 81 |
Grassmannian Integration | 106 |
Trees and Feynman Graphs | 111 |
Schwinger Functions and Anomalous Dimension | 120 |
Propagators for the Bose Gas | 124 |
The Beta Function for the Bose Gas | 126 |
135 | |
141 | |
142 | |