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Lorentz Invarjance of the Dlrac Equation 8
The Hole T ieory 16
11 other sections not shown
absorption operators amplitude anticommuting calculation classical commutation laws commutation rules component conjugate covariant cross-section defined density Dirac equation divergent effect electrons and positrons emission emitted energy equation of motion external potential factor factor-pairings Feynman field equations field operators field theory finite fluctuations formula free electron frequency function given gives graphs Hamiltonian Hence hydrogen atom integral Interaction Representation invariant jbvo Lagrangian Lamb shift line-shift logarithm Lorentz Lorentz transformation magnetic matrix element Maxwell field method momentum non-relativistic normal constituents notation observed one-electron one-particle pair particle perturbation theory photon Phys physical polarization positive positron probability amplitude problem quantized quantum electrodynamics quantum theory radiation field radiation interaction radiative corrections relativistic result satisfies scattering Schwinger solid angle solutions space-time spin spinor tion transformation transition vacuum expectation value variation vector wave-function write zero