Relativistic charged particles in the field of an electromagnetic plane wave in a medium |
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Authors: | W Becker |
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Institution: | Institut für Theoretische Physik, der Universität Tübingen, D-7400 Tübingen, West Germany |
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Abstract: | Solutions of the Klein-Gordon and Dirac equation for a charged particle in the field of an electromagnetic plane wave in a medium with a constant refractive index n are discussed. Generally, for n2 < 1, spontaneous pair creation from the vacuum, and for n2 > 1, energy bands are observed. The interplay of Compton and Cherenkov scattering is discussed. Some doubts are formulated as to the physical relevance of calculating pair creation in a homogeneous electric field as it is usually done. |
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