Zeitschrift für Physik B Condensed Matter

, Volume 35, Issue 4, pp 399–404 | Cite as

Quantum theory of a free electron laser

  • W. Becker
  • H. Mitter
Article

Abstract

Spontaneous emission by electrons moving in a magnetic field constant in time and periodic in space (with circular polarization) is calculated using exact solutions of the corresponding Dirac equation. In addition to the known transitions we find two harmonics connected with spin flip processes, which are, however, strongly suppressed. The gain of the free electron laser is recalculated from the rate for spontaneous emission. The results obtained by classical methods are corroborated.

Keywords

Spectroscopy Magnetic Field Neural Network State Physics Exact Solution 
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Copyright information

© Springer-Verlag 1979

Authors and Affiliations

  • W. Becker
    • 1
  • H. Mitter
    • 2
  1. 1.Institut für Theoretische PhysikUniversität TübingenTübingenFederal Republic of Germany
  2. 2.Institut für Theoretische PhysikUniversität GrazGrazAustria

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