## The quantum theory of radiation |

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### Contents

FIELD OF A POINT CHARGE AND EMISSION OF LIGHT | 19 |

REACTION OF THE FIELD LINE BREADTH | 26 |

SCATTERING ABSORPTION | 36 |

Copyright | |

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### Common terms and phrases

4-vector absorbed according amplitudes angle annihilation assume atom Born's approximation Bremsstrahlung calculated charge classical theory collisions commutation relations component Compton scattering consider Coulomb curves denotes density Dirac direction of polarization emitted energy and momentum energy E0 energy loss external field factor field strengths formula free electron frequency given gives Hamiltonian high energies initial insert integral intensity distribution interaction intermediate kinetic energy Klein-Nishina formula light quantum light wave line breadth longitudinal waves Lorentz Lorentz transformation matrix elements measurement negative electron negative energy non-relativistic nucleus number of light obtain order of magnitude P. A. M. Dirac pair pair production Phys plane wave positive electron potential Proc quadripole quantization quantum electrodynamics quantum mechanics quantum theory radiation oscillators region relativistic represents right-hand side second term self-energy shower subsection summation test body tion total number transition probability uncertainty relation vector vector potential velocity wave function wave-length y-rays zero