Quantum Field Theory: From Operators to Path Integrals

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John Wiley & Sons, Apr 26, 2010 - Science - 424 pages
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A new, updated and enhanced edition of the classic work, which was welcomed for its general approach and self-sustaining organization of the chapters.
Written by a highly respected textbook writer and researcher, this book has a more general scope and adopts a more practical approach than other books. It includes applications of condensed matter physics, first developing traditional concepts, including Feynman graphs, before moving on to such key topics as functional integrals, statistical mechanics and Wilson's renormalization group. The author takes care to explain the connection between the latter and conventional perturbative renormalization. Due to the rapid advance and increase in importance of low dimensional systems, this second edition fills a gap in the market with its added discussions of low dimensional systems, including one-dimensional conductors.
All the chapters have been revised, while more clarifying explanations and problems have been added. A FREE SOLUTIONS MANUAL is available for lecturers from www.wiley-vch.de/textbooks.
 

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Contents

Scalar Fields
17
Relativistic Fields
39
Canonical Formalism
55
Electromagnetic Field
69
Dirac Equation
95
The Dirac Field
123
Dynamics of Interacting Fields
139
Feynman Graphs
159
Path Integrals
261
Broken Symmetry
291
Renormalization
315
The Gaussian Fixed Point
339
In two Dimensions
357
Topological Excitations
375
Appendix A Background Material
399
Appendix B Superfluidity
405

Vacuum Correlation Functions 383
181
Quantum Electrodynamics
203
Processes in Quantum Electrodynamics
219
Perturbative Renormalization
235
Polchinskis Renormalization Equation 41
411
Index
417
Copyright

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About the author (2010)

Kerson Huang is Professor of Physics at the Massachusetts Institute of Technology, Cambridge, USA, and a leading authority on quantum physics. He is a highly experienced textbook writer and has written (among other books) Statistical Mechanics, also published by Wiley. Professor Huang?s research interests focus on Bose-Einstein condensates and non-renormalizable theories.

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