Basics of Quantum Electrodynamics
Auteurs : Merches Ioan, Tatomir Dorian, Lupu Roxana E.
Quantum electrodynamics (QED) is the branch of relativistic quantum field theory that deals specifically with the interactions between charged particles. It is widely used to solve problems in many areas of physics, such as elementary particles, atomic and molecular systems, and solid state physics. This accessible text, Basics of Quantum Electrodynamics, supplies a solid foundation in this dynamic area of physics, making a direct connection to the concepts of quantum mechanics familiar to the advanced undergraduate student.
Chapters cover the general theory of free fields and the quantization of the scalar, electromagnetic, and spinorial fields, which prepares readers for understanding field interactions. The authors describe the general theory of field interactions, introducing the scattering matrix and the Feynman?Dyson graphs. They then discuss divergence-free second-order processes, such as Compton and Møller scattering, followed by divergent second-order processes, which cover vacuum polarization and mass and charge renormalization.
Providing a modern, informative textbook, this volume illustrates the intimate connection between quantum mechanics and QED in two basic steps: the quantization of free fields, followed by the theory of their interactions. The text contains solved problems to facilitate the application of the theory, as well as a useful appendix on the theory of distributions. The step-by-step description of the quantization of various fields and the clear presentation of the most important interaction processes in QED make this textbook a useful guide for those studying physics at both the graduate and undergraduate level, as well as a reference for teachers and researchers in the field.
General Field Theory. General Problems of Field Quantization. The Quantization of the Scalar Field. The Quantization of the Electromagnetic Field. The Quantization of the Spinorial Field. General Problems of Field Interactions. Non-Divergent Second-Order Processes. Divergent Second-Order Processes. Appendix. Problems with Solutions. References. Subject Index.
Date de parution : 09-2019
15.6x23.4 cm
Date de parution : 11-2012
15.6x23.4 cm
Thèmes de Basics of Quantum Electrodynamics :
Mots-clés :
Lagrangian Densities; Energy Momentum Relation; field; Spinorial Fields; theory; Energy Momentum Tensor; feynman; Commutation Relation; diagram; Momentum Representation; divergent; Anti-commutation Relation; part; Electron Positron Pair; charge; Wick’s Theorems; conjugation; Spin Angular Momentum; operators; Spin; nobel; Differential Cross Section; GRAPH TABLE; Complex Scalar Field; Dirac Equation; Real Scalar Field; Β2 Cos; Cos Θ1; Annihilation Operators; Angular Momentum Density; Lorentz Gauge Condition; Vertex X1; Virtual Photons; Non-relativistic Approximation; K2 M2