By Ingvar Lindgren
This book provides a entire account of relativistic many-body perturbation conception, dependent upon box concept. After a few introductory chapters approximately time-independent and time based many-body perturbation idea (MBPT), the traditional innovations of S-matrix and Green’s capabilities are reviewed. subsequent, the newly brought covariant-evolution-operator approach is defined, which might be used, just like the S-matrix technique, for calculations in quantum electrodynamics (QED). in contrast to the S-matrix technique, this has a constitution that's just like that of MBPT and consequently can function foundation for a unified thought. Such an process is constructed within the ultimate chapters, and its equivalence to the Bethe-Salpeter equation is validated. attainable purposes are mentioned and numerical illustrations given.
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Extra resources for Relativistic Many-Body Theory: A New Field-Theoretical Approach: 63 (Springer Series on Atomic, Optical, and Plasma Physics)
Relativistic Many-Body Theory: A New Field-Theoretical Approach: 63 (Springer Series on Atomic, Optical, and Plasma Physics) by Ingvar Lindgren