Quantum Electrodynamics (Google eBook)
This classic work presents the main results and calculational procedures of quantum electrodynamics in a simple and straightforward way. Designed for the student of experimental physics who does not intend to take more advanced graduate courses in theoretical physics, the material consists of notes on the third of a three-semester course given at the California Institute of Technology.
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Resume of the Principles and Results of Special Relativity
Rebtivistic Wave Equation
Solution of the Dirac Equation for a Free Particle
Potential Problems in Quantum Electrodynamics
Relativistic Treatment of the Interaction of Particles with Light
Interaction of Several Electron
Discussion and Interpretation of Various Correction Terms
Pauli Principle and the Dirac Equation
absorbed absorption amplitude angular momentum annihilation approximation atom calculate charge classical closed loop components Compton scattering computed consider convergence factor correction Coulomb potential cross section cut-off defined density diagram difference dipole Dirac equation direction discussed divergence effect emission emitted equivalent example expression field four-vector free particle given gives Hamiltonian Hence initial and final integral interaction interpreted invariant Klein-Gordon equation Klein-Nishina formula Lecture mass matrix element meson method momentum representation negative energy neutron nonrelativistic normalization notation nucleon obtained operator pair production parity Pauli equation perturbation photon Phys polarization positive energy positron positronium possible prob./sec problem propagation kernel quantum electrodynamics quantum mechanics R. P. FEYNMAN radiation relativistic replaced represented result scalar scattering self-action self-energy solution space spin subtracted term theory tion transition probability tron vacuum vacuum polarization vector potential virtual wave function written zero
Page v - ... and reader interest dwindled. However, this has not proven to be the case for a number of the volumes in the series: Many works have remained in print on an on-demand basis, while others have such intrinsic value that the physics community has urged us to extend their life span. The Advanced Book Classics series has been designed to meet this demand. It will keep in print those volumes in Frontiers in Physics or its sister series, Lecture Notes and Supplements in Physics, that continue to provide...
Page v - Indeed, throughout its nearly fortyyear existence, the series has emphasized informality in both style and content, as well as pedagogical clarity. Over time, it was expected that these informal accounts would be replaced by more formal counterparts — textbooks or monographs — as the cutting-edge topics they treated gradually became integrated into the body of physics knowledge and reader interest dwindled. However, this has not proven to be the case for a number of the volumes in the series:...
Page v - ... having to devote the time and energy required to prepare a formal review or monograph. Indeed, throughout its nearly forty-year existence, the series has emphasized informality in both style and content, as well as pedagogical clarity. Over time, it was expected that these informal accounts would be replaced by more formal...
Page ii - ADVANCED BOOK CLASSICS David Pines, Series Editor Anderson, PW, Basic Notions of Condensed Matter Physics Bethe H. and Jackiw, R., Intermediate Quantum Mechanics, Third Edition Cowan, G, and Pines, D,, Complexity: Metaphors, Models, and Reality de Gennes, PG, Superconductivity of Metals and Alloys d'Espagnat, B., Conceptual Foundations of Quantum Mechanics, Second Edition Feynman, R., Photon-Hadron Interactions Feynman, R., Quantum Electrodynamics Feynman, R., Statistical...
Page 168 - B from which it results. For some purposes the specification in terms of K is easier to use and visualize. We desire eventually to discuss quantum electrodynamics from this point of view. To gain a greater familiarity with the K function and the point of view it suggests, we consider a simple perturbation problem. Imagine we have a particle in a weak potential I/(x, I), a function of position and time.
Page 167 - ... time (positron scattering) or forward (pair production). For such a particle the amplitude for transition from an initial to a final state is analyzed to any order in the potential by considering it to undergo a sequence of such scatterings. The amplitude for a process involving many such particles is the product of the transition amplitudes for each particle. The exclusion principle requires that antisymmetric combinations of amplitudes be chosen for those complete processes which differ only...
Page 171 - The fact that the entire sum is taken as negative in computing X+(4, 3) is reflected in the fact that in hole theory the amplitude has its sign reversed in accordance with the Pauli principle and the fact that the electron arriving at 2 has been exchanged with one in the sea.