The Schwinger Action Principle and Effective Action
Seiten
2012
Cambridge University Press (Verlag)
978-1-107-40630-8 (ISBN)
Cambridge University Press (Verlag)
978-1-107-40630-8 (ISBN)
This book is an introduction to the Schwinger action principle in quantum mechanics and quantum field theory, with applications to a variety of different models, not only those of interest to particle physics. It will interest graduate students and researchers in theoretical physics who are familiar with quantum mechanics.
This book is an introduction to the Schwinger action principle in quantum mechanics and quantum field theory, with applications to a variety of different models including Bose–Einstein condensation, the Casimir effect and trapped Fermi gases. The book begins with a brief review of the action principle in classical mechanics and classical field theory. It then moves on to quantum field theory, focusing on the effective action method. This is introduced as simply as possible by using the zero-point energy of the simple harmonic oscillator as the starting point. The book concludes with a more complete definition of the effective action, and demonstrates how the provisional definition used earlier is the first term in the systematic loop expansion. The renormalization of interacting scalar field theory is presented to two-loop order. This book will interest graduate students and researchers in theoretical physics who are familiar with quantum mechanics.
This book is an introduction to the Schwinger action principle in quantum mechanics and quantum field theory, with applications to a variety of different models including Bose–Einstein condensation, the Casimir effect and trapped Fermi gases. The book begins with a brief review of the action principle in classical mechanics and classical field theory. It then moves on to quantum field theory, focusing on the effective action method. This is introduced as simply as possible by using the zero-point energy of the simple harmonic oscillator as the starting point. The book concludes with a more complete definition of the effective action, and demonstrates how the provisional definition used earlier is the first term in the systematic loop expansion. The renormalization of interacting scalar field theory is presented to two-loop order. This book will interest graduate students and researchers in theoretical physics who are familiar with quantum mechanics.
Preface; 1. Action principle in classical mechanics; 2. Action principle in classical field theory; 3. Action principle in quantum theory; 4. The effective action; 5. Quantum statistical mechanics; 6. Effective action at finite temperature; 7. Further applications of the Schwinger action principle; 8. General definition of the effective action; Appendices; References; Index.
| Erscheint lt. Verlag | 9.8.2012 |
|---|---|
| Reihe/Serie | Cambridge Monographs on Mathematical Physics |
| Verlagsort | Cambridge |
| Sprache | englisch |
| Maße | 170 x 244 mm |
| Gewicht | 800 g |
| Themenwelt | Geisteswissenschaften ► Geschichte ► Allgemeine Geschichte |
| Naturwissenschaften ► Physik / Astronomie ► Quantenphysik | |
| ISBN-10 | 1-107-40630-7 / 1107406307 |
| ISBN-13 | 978-1-107-40630-8 / 9781107406308 |
| Zustand | Neuware |
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