Relativistic Many-Body Theory
A New Field-Theoretical Approach
Nonfiction, Science & Nature, Science, Physics, Optics, Quantum Theory
| Author: | Ingvar Lindgren | ISBN: | 9781441983091 |
| Publisher: | Springer New York | Publication: | April 30, 2011 |
| Imprint: | Springer | Language: | English |
| Author: | Ingvar Lindgren |
| ISBN: | 9781441983091 |
| Publisher: | Springer New York |
| Publication: | April 30, 2011 |
| Imprint: | Springer |
| Language: | English |
This book gives a comprehensive account of relativistic many-body perturbation theory, based upon field theory. After some introductory chapters about time-independent and time dependent many-body perturbation theory (MBPT), the standard techniques of S-matrix and Green’s functions are reviewed. Next, the newly introduced covariant-evolution-operator method is described, which can be used, like the S-matrix method, for calculations in quantum electrodynamics (QED). Unlike the S-matrix method, this has a structure that is similar to that of MBPT and therefore can serve as basis for a unified theory. Such an approach is developed in the final chapters, and its equivalence to the Bethe-Salpeter equation is demonstrated. Possible applications are discussed and numerical illustrations given.
This book gives a comprehensive account of relativistic many-body perturbation theory, based upon field theory. After some introductory chapters about time-independent and time dependent many-body perturbation theory (MBPT), the standard techniques of S-matrix and Green’s functions are reviewed. Next, the newly introduced covariant-evolution-operator method is described, which can be used, like the S-matrix method, for calculations in quantum electrodynamics (QED). Unlike the S-matrix method, this has a structure that is similar to that of MBPT and therefore can serve as basis for a unified theory. Such an approach is developed in the final chapters, and its equivalence to the Bethe-Salpeter equation is demonstrated. Possible applications are discussed and numerical illustrations given.
